Prosecution Insights
Last updated: October 02, 2026
Application No. 18/425,933

BEAM DIVERGENCE CONTROL WITHOUT CREATION OF BORESIGHT OR OTHER ERRORS

Final Rejection §103
Filed
Jan 29, 2024
Examiner
BOURQUINE, MACKENZI TATE
Art Unit
2872
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
RAYTHEON Company
OA Round
2 (Final)
79%
Grant Probability
Favorable
3-4
OA Rounds
7m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
67 granted / 85 resolved
+10.8% vs TC avg
Strong +16% interview lift
Without
With
+15.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
29 currently pending
Career history
120
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
55.6%
+15.6% vs TC avg
§102
26.5%
-13.5% vs TC avg
§112
17.2%
-22.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 85 resolved cases

Office Action

§103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Drawings The drawings filed on 1/29/2024 are acknowledged and accepted. Response to Amendment The amendments filed on 5/20/2026 are acknowledged and accepted. Claims 1, 2, 8-10, and 17-19 are amended, Claims 6, 14, and 20 are canceled, Claims 21-23 have been added, and Claims 1-5, 7-13 ,15-19, and 21-23 remain pending in the application. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1-2, 4-5, 7-10, 12-13, 15-19, and 21-23 are rejected under 35 U.S.C. 103 as being unpatentable over Kajikawa (US20120012758A1, of record) in view of Campbell (US20070159701A1, of record). With respect to Claim 1, Kajikawa discloses an apparatus comprising: a quarter waveplate (Fig. 1—element 8, quarter-wave plate; [0046]); a half waveplate (Fig. 1-- element 4, half-wave plate; [0046]); multiple lenses (Fig. 1-- elements 7 and 9, lenses; [0046]) configured to reshape a first divergence ([0020] and [0051]: intensity ratios of a plurality of beam waists can be altered via elements 4 and 7) of the input optical beam (Fig. 1-- element P, laser beam; [0046]) and generate an output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]) having a second divergence ([0020] and [0051]: intensity ratios of a plurality of beam waists can be altered via elements 4 and 7), wherein at least one of the lenses comprises one or more birefringent materials (Fig. 1—element 7, birefringent lens; [0046]); wherein the second divergence ([0020] and [0051]: intensity ratios of a plurality of beam waists can be altered via elements 4 and 7) of the output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]) is based on the polarization caused by the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) and the at least one of the multiple lenses (Fig. 1-- elements 7 and 9, lenses; [0046]) comprising the one or more birefringent materials (Fig. 1—element 7, birefringent lens; [0046]); and wherein the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) is configured to be rotated or repositioned ([0020]: element 4 is rotatable about the optical axis) in order to change the position of the half waveplate and adjust the second the divergence ([0020]: intensity ratios of a plurality of beam waists can be altered via rotatable element 4) of the output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]). However, Kajikawa does not disclose a quarter waveplate configured to convert a circular polarization of an input optical beam into a linear polarization; a half waveplate optically located after the quarter waveplate and configured to alter the linear polarization of the input optical beam based on a position of the half waveplate; wherein the second divergence of the output optical beam is based on the altered linear polarization caused by the half waveplate. Kajikawa and Campbell are related as pertaining to the field of optical systems. Campbell does disclose a quarter waveplate (Fig. 1A—element Q2, quarter wave plate; [0042]) configured to convert a circular polarization of an input optical beam into a linear polarization ([0039]: Q2 converts circularly polarized light into linearly polarized light); a half waveplate (Fig. 1A—element 120, polarization rotator; [0043]) optically located after the quarter waveplate (Fig. 1A—element Q2, quarter wave plate; [0042]) and configured to alter the linear polarization of the input optical beam (Fig. 1A—element 170, incoming light; [0041]) based on a position ([0042]: Q2 re-linearizes light rays 175 and 180 and can itself be physically rotated from 0 to 90 degrees, thereby selecting the polarization state of emerging light rays 175 and 180) of the half waveplate (Fig. 1A—element 120, polarization rotator; [0043]); wherein the second divergence ([0043]: The polarization rotator can also spatially multiplex the output polarization state) of the output optical beam is based on the altered linear polarization caused by the half waveplate (Fig. 1A—element 120, polarization rotator; [0043]). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to place the quarter waveplate before the half waveplate in order to create a device which may serve as a backup in case the half waveplate does not rotate correctly (Campbell, [0042]) and to combine the apparatus of Kajikawa with the linearly polarizing half waveplate of Campbell in order to provide 98.8% linear polarization rotation from -30 degrees Celsius to +50 degrees Celsius across the entire visible spectrum and beyond (Campbell, [0048]). With respect to Claim 2, Kajikawa and Campbell discloses the apparatus of Claim 1, and Kajikawa discloses further comprising: an actuator ([0048]: an actuator may be employed) configured to rotate ([0020]: element 4 is rotatable about the optical axis) the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) so that the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) obtains a desired rotation and provides a desired adjustment to the polarization ([0047]: element 4 rotates the electric field vector of the laser beam) of the input optical beam (Fig. 1-- element P, laser beam; [0046]). However, Kajikawa does not disclose that the half waveplate emits linearly polarized light. Kajikawa and Campbell are related as pertaining to the field of optical systems. Campbell does disclose that the half waveplate (Fig. 1A—element 120, polarization rotator; [0043]) emits linearly polarized light ([0039]: Q2 converts circularly polarized light into linearly polarized light). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the apparatus of Kajikawa with the linearly polarizing half waveplate of Campbell in order to provide 98.8% linear polarization rotation from -30 degrees Celsius to +50 degrees Celsius across the entire visible spectrum and beyond (Campbell, [0048]). With respect to Claim 4, Kajikawa and Campbell discloses the apparatus of Claim 1, and Kajikawa further discloses wherein the multiple lenses (Fig. 1-- elements 7 and 9, lenses; [0046]) comprise a negative lens and a positive lens ([0051]: element 7 may be negative; [0046]: element 9 is a positive converging lens). With respect to Claim 5, Kajikawa and Campbell discloses the apparatus of Claim 4, and Kajikawa further discloses wherein the negative lens ([0051]: element 7 may be negative) comprises the one or more birefringent materials (Fig. 1—element 7, birefringent lens; [0046]). With respect to Claim 7, Kajikawa and Campbell discloses the apparatus of Claim 1, and Kajikawa further discloses wherein the one or more birefringent materials (Fig. 1—element 7, birefringent lens; [0046]) comprise at least one of: quartz ([0018]: the birefringent material is preferably optical crystalline quartz), titanium dioxide (TiO2), yttrium orthovanadate (YVO4), calcite (CaCO3), lithium niobate (LiNBO3), magnesium fluoride (MgF2), or silicon dioxide (SIO2). With respect to Claim 8, Kajikawa discloses a system comprising: an optical source (Fig. 1—element 1, light source; [0046]) configured to generate an input optical beam (Fig. 1-- element P, laser beam; [0046]); a quarter waveplate (Fig. 1—element 8, quarter-wave plate; [0046]); a half waveplate (Fig. 1-- element 4, half-wave plate; [0046]); multiple lenses (Fig. 1-- elements 7 and 9, lenses; [0046]) configured to reshape a first divergence ([0020] and [0051]: intensity ratios of a plurality of beam waists can be altered via elements 4 and 7) of the input optical beam (Fig. 1-- element P, laser beam; [0046]) and generate an output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]) having a second divergence ([0020] and [0051]: intensity ratios of a plurality of beam waists can be altered via elements 4 and 7), wherein at least one of the lenses comprises one or more birefringent materials (Fig. 1—element 7, birefringent lens; [0046]), and wherein the second divergence of the output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]) is based on the polarization caused by the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) and the at least one of the multiple lenses (Fig. 1-- elements 7 and 9, lenses; [0046]) comprising the one or more birefringent materials ([0020] and [0051]: intensity ratios of a plurality of beam waists can be altered via elements 4 and 7); and an actuator ([0048]: an actuator may be employed) configured to rotate ([0020]: element 4 is rotatable about the optical axis) or reposition the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) in order to change the position of the half waveplate and adjust the second the divergence ([0020]: intensity ratios of a plurality of beam waists can be altered via rotatable element 4) of the output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]). However, Kajikawa does not disclose a quarter waveplate configured to convert a circular polarization of an input optical beam into a linear polarization; a half waveplate optically located after the quarter waveplate and configured to alter the linear polarization of the input optical beam based on a position of the half waveplate. However, Kajikawa does not disclose a quarter waveplate configured to convert a circular polarization of an input optical beam into a linear polarization; a half waveplate optically located after the quarter waveplate (Fig. 1A—element Q2, quarter wave plate; [0042]) and configured to alter the linear polarization of the input optical beam (Fig. 1A—element 170, incoming light; [0041]) based on a position ([0042]: Q2 re-linearizes light rays 175 and 180 and can itself be physically rotated from 0 to 90 degrees, thereby selecting the polarization state of emerging light rays 175 and 180) of the half waveplate (Fig. 1A—element 120, polarization rotator; [0043]); wherein the second divergence ([0043]: The polarization rotator can also spatially multiplex the output polarization state) of the output optical beam is based on the altered linear polarization caused by the half waveplate (Fig. 1A—element 120, polarization rotator; [0043]). Kajikawa and Campbell are related as pertaining to the field of optical systems. Campbell does disclose a quarter waveplate (Fig. 1A—element Q2, quarter wave plate; [0042]) configured to convert a circular polarization of an input optical beam into a linear polarization ([0039]: Q2 converts circularly polarized light into linearly polarized light); a half waveplate (Fig. 1A—element 120, polarization rotator; [0043]) optically located after the quarter waveplate (Fig. 1A—element Q2, quarter wave plate; [0042]) and configured to alter the linear polarization of the input optical beam (Fig. 1A—element 170, incoming light; [0041]) based on a position ([0042]: Q2 re-linearizes light rays 175 and 180 and can itself be physically rotated from 0 to 90 degrees, thereby selecting the polarization state of emerging light rays 175 and 180) of the half waveplate (Fig. 1A—element 120, polarization rotator; [0043]); wherein the second divergence ([0043]: The polarization rotator can also spatially multiplex the output polarization state) of the output optical beam is based on the altered linear polarization caused by the half waveplate (Fig. 1A—element 120, polarization rotator; [0043]). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to place the quarter waveplate before the half waveplate in order to create a device which may serve as a backup in case the half waveplate does not rotate correctly (Campbell, [0042]) and to combine the apparatus of Kajikawa with the linearly polarizing half waveplate of Campbell in order to provide 98.8% linear polarization rotation from -30 degrees Celsius to +50 degrees Celsius across the entire visible spectrum and beyond (Campbell, [0048]). With respect to Claim 9, Kajikawa and Campbell discloses the system of Claim 8, and Kajikawa discloses further comprising: a controller configured to control the actuator ([0048]: an actuator controlled by a controller may be employed) based on a desired second divergence (0020]: intensity ratios of a plurality of beam waists can be altered via rotatable element 4) of the output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]). With respect to Claim 10, Kajikawa and Campbell discloses the system of Claim 8, and Kajikawa further discloses wherein the actuator ([0048]: an actuator may be employed) is configured to rotate ([0020]: element 4 is rotatable about the optical axis) the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) so that the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) obtains a desired rotation and provides a desired adjustment to the polarization ([0047]: element 4 rotates the electric field vector of the laser beam) of the input optical beam (Fig. 1-- element P, laser beam; [0046]). However, Kajikawa does not disclose that the half waveplate emits linearly polarized light. Kajikawa and Campbell are related as pertaining to the field of optical systems. Campbell does disclose that the half waveplate (Fig. 1A—element 120, polarization rotator; [0043]) emits linearly polarized light ([0039]: Q2 converts circularly polarized light into linearly polarized light). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the apparatus of Kajikawa with the linearly polarizing half waveplate of Campbell in order to provide 98.8% linear polarization rotation from -30 degrees Celsius to +50 degrees Celsius across the entire visible spectrum and beyond (Campbell, [0048]). With respect to Claim 12, Kajikawa and Campbell discloses the system of Claim 8, and Kajikawa further discloses wherein the multiple lenses (Fig. 1-- elements 7 and 9, lenses; [0046]) comprise a negative lens and a positive lens ([0051]: element 7 may be negative; [0046]: element 9 is a positive converging lens). With respect to Claim 13, Kajikawa and Campbell discloses the system of Claim 12, and Kajikawa further discloses wherein the negative lens ([0051]: element 7 may be negative) comprises the one or more birefringent materials (Fig. 1—element 7, birefringent lens; [0046]). With respect to Claim 15, Kajikawa and Campbell discloses the system of Claim 8, and Kajikawa further discloses wherein the one or more birefringent materials (Fig. 1—element 7, birefringent lens; [0046]) comprise at least one of: quartz ([0018]: the birefringent material is preferably optical crystalline quartz), titanium dioxide (TiO2), yttrium orthovanadate (YVO4), calcite (CaCO3), lithium niobate (LiNBO3), magnesium fluoride (MgF2), or silicon dioxide (SIO2). With respect to Claim 16, Kajikawa and Campbell discloses the system of Claim 8, and Kajikawa further discloses wherein the output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]) comprises a high-energy laser (HEL) beam or a target illumination laser (TIL) beam ([0026]: the target is illuminated by the laser beam). With respect to Claim 17, Kajikawa discloses a method comprising: a quarter waveplate (Fig. 1—element 8, quarter-wave plate; [0046]); a half waveplate (Fig. 1-- element 4, half-wave plate; [0046]); and reshaping a first divergence ([0020] and [0051]: intensity ratios of a plurality of beam waists can be altered via elements 4 and 7) of the input optical beam (Fig. 1-- element P, laser beam; [0046]) using multiple lenses (Fig. 1-- elements 7 and 9, lenses; [0046]) to generate an output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]) having a second divergence ([0020] and [0051]: intensity ratios of a plurality of beam waists can be altered via elements 4 and 7), wherein at least one of the lenses comprises one or more birefringent materials (Fig. 1—element 7, birefringent lens; [0046]); wherein the second divergence ([0020] and [0051]: intensity ratios of a plurality of beam waists can be altered via elements 4 and 7) of the output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]) is based on the polarization caused by the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) and the at least one of the multiple lenses comprising the one or more birefringent materials (Fig. 1—element 7, birefringent lens; [0046]); and wherein the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) is configured to be rotated or repositioned ([0020]: element 4 is rotatable about the optical axis) in order to change the position of the half waveplate and adjust the second the divergence ([0020]: intensity ratios of a plurality of beam waists can be altered via rotatable element 4) of the output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]). However, Kajikawa does not disclose converting a circular polarization of an input optical beam into a linear polarization using a quarter waveplate; altering the linear polarization of the input optical beam based on a position of a half waveplate; wherein the second divergence of the output optical beam is based on the altered linear polarization caused by the half waveplate. Kajikawa and Campbell are related as pertaining to the field of optical systems. Campbell does disclose converting a circular polarization of an input optical beam into a linear polarization using a quarter waveplate (Fig. 1A—element Q2, quarter wave plate; [0042]); altering the linear polarization of the input optical beam ([0039]: Q2 converts circularly polarized light into linearly polarized light) based on a position of a half waveplate ([0043]: The polarization rotator can also spatially multiplex the output polarization state); wherein the second divergence ([0043]: The polarization rotator can also spatially multiplex the output polarization state) of the output optical beam is based on the altered linear polarization caused by the half waveplate (Fig. 1A—element 120, polarization rotator; [0043]). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to place the quarter waveplate before the half waveplate in order to create a device which may serve as a backup in case the half waveplate does not rotate correctly (Campbell, [0042]) and to combine the apparatus of Kajikawa with the linearly polarizing half waveplate of Campbell in order to provide 98.8% linear polarization rotation from -30 degrees Celsius to +50 degrees Celsius across the entire visible spectrum and beyond (Campbell, [0048]). With respect to Claim 18, Kajikawa and Campbell discloses the method of Claim 17, and Kajikawa further discloses comprising: rotating the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) to adjust the second divergence ([0020]: intensity ratios of a plurality of beam waists can be altered via rotatable element 4) of the output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]). With respect to Claim 19, Kajikawa and Campbell discloses the method of Claim 17, and Kajikawa further discloses comprising: repositioning the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]) to adjust the second divergence ([0020]: intensity ratios of a plurality of beam waists can be altered via rotatable element 4) of the output optical beam (Fig. 1-- elements 12 and 13, output light; [0052]). With respect to Claim 21, Kajikawa and Campbell discloses the apparatus of Claim 1, and Kajikawa further discloses wherein the quarter waveplate (Fig. 1—element 8, quarter-wave plate; [0046]) comprises a planar structure (Fig. 1—element 8 is planar). However, Kajikawa does not explicitly disclose wherein the quarter waveplate is formed using at least one birefringent material. Kajikawa and Campbell are related as pertaining to the field of optical systems. Campbell discloses a quarter waveplate that is formed using at least one birefringent material ([0047]: Typically, a broadband wave plate has three or more layers of birefringent material oriented at appropriate angles). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the quarter waveplate of Kajikawa with the birefringent material of Campbell in order to create an apparatus which may perform exceptionally well across a very broad spectral range of 400 nm-900 nm and beyond and across a very broad thermal range of -29 degrees Celsius to +49 degrees Celsius and beyond (Campbell, [0047]). With respect to Claim 22, Kajikawa and Campbell discloses the system of Claim 8, and Kajikawa further discloses wherein the quarter waveplate (Fig. 1—element 8, quarter-wave plate; [0046]) comprises a planar structure (Fig. 1—element 8 is planar). However, Kajikawa does not explicitly disclose wherein the quarter waveplate is formed using at least one birefringent material. Kajikawa and Campbell are related as pertaining to the field of optical systems. Campbell discloses a quarter waveplate that is formed using at least one birefringent material ([0047]: Typically, a broadband wave plate has three or more layers of birefringent material oriented at appropriate angles). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the quarter waveplate of Kajikawa with the birefringent material of Campbell in order to create an apparatus which may perform exceptionally well across a very broad spectral range of 400 nm-900 nm and beyond and across a very broad thermal range of -29 degrees Celsius to +49 degrees Celsius and beyond (Campbell, [0047]). With respect to Claim 23, Kajikawa and Campbell discloses the method of Claim 17, and Kajikawa further discloses wherein the quarter waveplate (Fig. 1—element 8, quarter-wave plate; [0046]) comprises a planar structure (Fig. 1—element 8 is planar) However, Kajikawa does not explicitly disclose wherein the quarter waveplate is formed using at least one birefringent material. Kajikawa and Campbell are related as pertaining to the field of optical systems. Campbell discloses a quarter waveplate that is formed using at least one birefringent material ([0047]: Typically, a broadband wave plate has three or more layers of birefringent material oriented at appropriate angles). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the quarter waveplate of Kajikawa with the birefringent material of Campbell in order to create an apparatus which may perform exceptionally well across a very broad spectral range of 400 nm-900 nm and beyond and across a very broad thermal range of -29 degrees Celsius to +49 degrees Celsius and beyond (Campbell, [0047]). Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 3 and 11 are rejected under 35 U.S.C. 103 as being unpatentable over Kajikawa (US20120012758A1, of record) in view of Campbell (US20070159701A1, of record) further in view of Tayebati (JP2019523137A, of record). With respect to Claim 3, Kajikawa and Campbell discloses the apparatus of Claim 1, and Kajikawa discloses further comprising: an actuator ([0048]: an actuator may be employed) configured to move the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]). However, Kajikawa does not disclose an actuator configured to move the half waveplate into and out of a path of the input optical beam. Kajikawa and Tayebati are related as both pertaining to the field of optical systems. Tayebati does disclose an actuator (Fig. 5—element 535, translation stage; [0068]) configured to move an optical element into and out of a path of the input optical beam (Fig. 5—element 525 may move optical elements up and down out of the optical path). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the apparatus of Kajikawa with the translation stage of Tayebati in order to create a device which may move optical elements along two or three axis (Tayebati, [0068]). With respect to Claim 11, Kajikawa and Campbell discloses the system of Claim 8, and Kajikawa further discloses wherein the actuator ([0048]: an actuator may be employed) is configured to move the half waveplate (Fig. 1-- element 4, half-wave plate; [0046]). However, Kajikawa does not disclose an actuator configured to move the half waveplate into and out of a path of the input optical beam. Kajikawa and Tayebati are related as both pertaining to the field of optical systems. Tayebati does disclose an actuator (Fig. 5—element 535, translation stage; [0068]) configured to move an optical element into and out of a path of the input optical beam (Fig. 5—element 525 may move optical elements up and down out of the optical path). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the apparatus of Kajikawa with the translation stage of Tayebati in order to create a device which may move optical elements along two or three axis (Tayebati, [0068]). Response to Arguments Applicant's arguments filed 5/20/2026 have been fully considered but they are not persuasive. Examiner disagrees with Applicant’s argument that forced movement of the quarter waveplate 8 of Kajikawa would cause the system of Kajikawa to deviate from its disclosed operation. Kajikawa discloses in [0072]: “the present invention should not be construed as being limited to these Examples”. Further, Figs. 1 and 3 of Kajikawa disclose element 8 residing in different locations, meaning that the location of element 8 is not integral to the function of the irradiation optical system of Kajikawa. Examiner disagrees with Applicant’s argument that it is not disclosed or suggested by Kajikawa or Campbell to convert a circular polarization of an input optical beam into a linear polarization that may be processed by a half waveplate. Campbell does disclose in paragraph [0039]: Q2 converts circularly polarized light into linearly polarized light, thus the combination of Q2 of Campbell with the apparatus of Kajikawa is capable of converting a circular polarization of an input optical beam into a linear polarization that may be processed by a half waveplate. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MACKENZI BOURQUINE whose telephone number is (571)272-5956. The examiner can normally be reached Monday - Friday 8:30 - 4:30 EST. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Pinping Sun can be reached at (571) 270-1284. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /MACKENZI BOURQUINE/ Examiner, Art Unit 2872 /WILLIAM R ALEXANDER/ Primary Examiner, Art Unit 2872
Read full office action

Prosecution Timeline

Jan 29, 2024
Application Filed
Feb 20, 2026
Non-Final Rejection mailed — §103
May 20, 2026
Response Filed
Aug 17, 2026
Final Rejection mailed — §103 (current)

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Prosecution Projections

3-4
Expected OA Rounds
79%
Grant Probability
94%
With Interview (+15.5%)
3y 3m (~7m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 85 resolved cases by this examiner. Grant probability derived from career allowance rate.

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