Prosecution Insights
Last updated: October 04, 2026
Application No. 18/952,221

FOLDING STRUCTURE OF A MIRROR

Final Rejection §102§103§112
Filed
Nov 19, 2024
Priority
Jun 10, 2024 — RE 10-2024-0074802
Examiner
MCDUFFIE, MICHAEL D
Art Unit
3632
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Sl Mirrortech Corporation
OA Round
2 (Final)
68%
Grant Probability
Favorable
3-4
OA Rounds
8m
Est. Remaining
57%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
576 granted / 852 resolved
+15.6% vs TC avg
Minimal -10% lift
Without
With
+-10.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
26 currently pending
Career history
874
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
54.2%
+14.2% vs TC avg
§102
27.1%
-12.9% vs TC avg
§112
14.2%
-25.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 852 resolved cases

Office Action

§102 §103 §112
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 . This correspondence is in response to applicant’s reply filed on 05/26/2026. Claims 1-20 are pending. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Drawings The drawings are objected to as failing to comply with 37 CFR 1.84(p)(4) because reference character “300” has been used to designate both the “cover” (as seen in Fig. 2C) and a “ring,” (as seen in Fig. 3A). Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. The drawings are objected to under 37 CFR 1.83(a). The drawings must show every feature of the invention specified in the claims. Therefore, the “inclined ribs” (see claim 20) must be shown or the feature(s) canceled from the claim(s). No new matter should be entered. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Claim Rejections - 35 USC § 112 Claims 4 and 20 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 4 discloses: “…where the cover comprises at least one protrusion…” Based on the Examiner’s understanding, the at least one protrusion is located on the “detent ring.” For Examination purposes, the claim will be interpreted as best understood by the Examiner. Claim 20 is drawn to inclined ribs, but the specification and drawings fail to disclose where these ribs are located structurally on the folding structure. For Examination purposes, the claim will be interpreted as best understood by the Examiner. Claim Rejections - 35 USC § 102 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claim(s) 1-9, 11-12, and 14-18, and 20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by van Stiphout (U.S. Pat. 10562453). Regarding claim 1, van Stiphout discloses a folding structure 1 of a mirror comprising: a cover 6; a motor 30; and a shaft 4 coupled to the motor 30 and configured to, based on a driving force from the motor 30, rotate the cover 6 with respect to a base, where the shaft 4 comprises a detent ring 23, coupled to the cover 6, configured to support a load generated as the cover 6 moves upward or downward based on rotation relative to the base (see discussion in col. 4, lines 59-63) and a driven gear 16 located on the shaft 4, and where the driven gear 16 comprises position regulation protrusions 19 configured to be seated in shaft recesses 29 formed in the shaft 4 in a coupled state of the driven gear 16 to the shaft 4 (as seen in Fig. 2 below). Regarding claim 2, van Stiphout discloses the folding structure 1, where the shaft 4 further comprises at least one stepped portion 14 configured to implement upward or downward movement of the cover 6 via inclined portions 12 formed at both ends of the at least one stepped portion 14 (as seen in Fig. 1). Regarding claim 3, van Stiphout discloses the folding structure 1, where the inclined portions 12 of the shaft 4 are formed to be inclined at a predetermined angle in a rotation direction of the cover 6 (see Fig. 2). Regarding claim 4, van Stiphout discloses the folding structure 1, where the detent ring 23 comprises at least one protrusion 11 formed on a surface of the cover 6 and configured to protrude into the at least one stepped portion 14 of the shaft 4, where the at least one protrusion 11 is configured to move up or down the inclined portions 12 based on rotation of the cover 6 (as seen in Fig. 2). Regarding claim 5, van Stiphout discloses the folding structure 1, where the cover 6 comprises second protrusions (as shown in Fig. 2 below) each having one surface that is convex toward the detent ring 23, where the cover 6 is coupled to the detent ring 23 via the second protrusions. Regarding claim 6, van Stiphout discloses the folding structure 1, where the motor 30 is coupled to the cover 6, the folding structure 1 further comprising: a transmission unit (as seen in Fig. 1 below) configured to transmit the driving force to the shaft 4. Regarding claim 7, van Stiphout discloses the folding structure 1, where the transmission unit comprises: a first worm wheel gear engaged with a first worm gear 31 located on a rotatable shaft of the motor 30 (as seen in Fig. 1 below); and a second worm gear located coaxially with the first worm wheel gear and coupled to the shaft 4 (also seen in Fig. 1 below). Regarding claim 8, van Stiphout discloses the folding structure 1, where the shaft 4 is coupled to the base and the detent ring 23 is coupled to the shaft 4, the folding structure 1 further comprising: a pressing member 20 located between the driven gear 16 and the cover 6, and where the driven gear 16 is engaged with the second worm gear (as seen in Fig. 1 below). Regarding claim 9, van Stiphout discloses the folding structure 1, where the second worm gear is configured to apply a driving force to the driven gear 16 so as to cause the driven gear 16 to: be restrained by the shaft 4, and rotate the motor 30 and the cover 6 about the shaft 4 (see Fig. 7A). Regarding claim 11, van Stiphout discloses the folding structure 1, where the detent ring 23 comprises: vertical guide protrusions 24 inserted into recesses 25 formed on an outer circumferential surface of the shaft 4; and position regulation recesses 29 configured to accommodate position regulation protrusions 19 of the driven gear 16 inserted thereinto (as seen in Fig. 1). Regarding claim 12, van Stiphout discloses the folding structure 1, where the driven gear 16 is restrained by the shaft 4 via the position regulation protrusions 19 being inserted into the position regulation recesses 29 of the detent ring 23. Regarding claim 14, van Stiphout discloses the folding structure 1, where the detent ring 16 comprises third protrusions (at 26) protruding towards the cover 6, and second protrusions 8 of the cover 6 are inserted between the third protrusions (at 26). Regarding claim 15, van Stiphout discloses the folding structure 1, where, the third protrusions (at 26) are configured to contact a side surface of an upper end of the cover 6 when the mirror is in a folded state (see, for example Fig. 3B). Regarding claim 16, van Stiphout discloses a folding structure 1 of a mirror comprising: a motor 30; a shaft 4 comprising one or more grooves 14 in a first direction parallel to an axis of rotation of the shaft 4; a cover 6, around and concentric with the shaft 4, comprising one or more first protrusions 11 inserted into one or more grooves 14 (as seen in Fig. 2); and a driven gear 16 located on the shaft 4, and where the driven gear 16 comprises position regulation protrusions 19 configured to be seated in shaft recesses 29 formed in the shaft 4 in a coupled state of the driven gear 16 to the shaft 4, where the shaft 4 is configured to rotate, via the motor 30 and relative to a base of the mirror, to cause the mirror to be in a folded state or an unfolded state; where, sides of the one or more grooves 14 are inclined (at 12) from the first direction and a second direction parallel to a circumference of the shaft 4; and where the one or more first protrusions 11 are inserted into the one or more grooves 14 in the unfolded state, and when the shaft 4 rotates from the unfolded state to the folded state, the one or more first protrusions 11 move along the sides of the one or more grooves 14 in a direction which raises the cover 6 relative to the base (see discussion in col. 5, lines 16-24). Regarding claim 17, van Stiphout discloses the folding structure 1, where, when the shaft 4 rotates from the folded state to the unfolded state, the one or more first protrusions 11 move along the sides of the one or more grooves 14 in a direction which lowers the cover 6 relative to the base. Regarding claim 18, van Stiphout discloses the folding structure 1, further comprising: a detent 23 configured to support a load generated as the cover 6 is raised or lowered relative to the base. Regarding claim 20, Stiphout discloses the folding structure, where the position regulation recesses 29 of the detent ring 23 comprise inclined ribs (see structure of detent ring’s 23 surface in Fig. 1), where the driven gear 16 is configured to move in a height direction along the inclined ribs when external force is applied to the cover 6 (see Figs. 5B and 6A). PNG media_image1.png 672 693 media_image1.png Greyscale PNG media_image2.png 809 614 media_image2.png Greyscale Claim Rejections - 35 USC § 103 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claim(s) 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over van Stiphout in view of Casals et al. (U.S. Pat. 10077001). Regarding claim 10, van Stiphout is discussed above and teaches the folding structure. However, van Stiphout fails to teach where the folding structure 1 further comprises an elastic member, located between the second worm gear and the cover 6, configured to provide elastic force in an axial direction of the second worm gear. Casals teaches a foldable rear-view mirror, comprising a motor 151, pressing member 270, and cover 6. Casals further teaches a transmission unit 215 comprising a worm gear 159, wheel gear 158, and an elastic member 170. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the transmission unit of van Stiphout to have an elastic member, in order to provide a means to cooperate with the gear wheel assembly such that in a first direction of rotation, the mirror housing is allowed to rotate relative to the base member, in addition to allowing rotation of the mirror housing relative to the base member, where, the spring element resiliently deforms as it slides against a slide surface formed in the gear rim, as taught to be desirable by Casals (see discussion in col. 8, lines 1-9). Claim(s) 13 is/are rejected under 35 U.S.C. 103 as being unpatentable over van Stiphout in view of Mazurek (U.S. Pat. 5521744). Regarding claim 13, van Stiphout is discussed above, and teaches the folding structure, where the cover 6 is installed in a mirror housing connected to the base. However, Stiphout fails to teach where a cutline seal is configured to selectively contact the mirror housing, and the mirror housing is spaced apart from the cutline seal if the cover 6 is raised. Mazurek teaches a folding structure 1 for a vehicle mirror 11, comprising a cutline seal with his folding structure 1. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the cover of van Stiphout to have a cutline seal, in order to provide a water tight frame to prevent exposure of the mirror to road-salt and moisture from humidity or rain, as taught to be desirable by Mazurek (see discussion in col. 11, lines 60-63). Claim(s) 19 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stiphout. Regarding claim 19, Stiphout teaches the folding structure above, where the cover 6 comprises first protrusions 11 each having a convex surface toward the at least one stepped portion 14 and the inclined portions of the shaft 4. However, Stiphout fails to teach where a diameter of the shaft 4 increases from an upper part of the shaft 4 to a low part of the shaft 4. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to taper the diameter of the shaft of Stiphout from the top to the bottom, because the technique for improving a particular class of devices was part of the ordinary capabilities of a person of ordinary skill in the art, in view of the teaching of the technique for improvement in other situations (see MPEP 2141, III. (C)). Response to Arguments Applicant's arguments filed 05/26/2026 have been fully considered but they are not persuasive. Regarding the Applicant’s argument that van Stiphout fails to teach or disclose “a driven gear located on the shaft, and wherein the driven gear comprises position regulation protrusions configured to be seated in shaft recesses formed in the shaft in a coupled state of the driven gear to the shaft,” the Examiner submits the following. Based on the specification and drawings, the claimed invention is drawn to a position regulation protrusion 211 positioned on the driven gear 210, which is received in a position regulation recess 222, positioned on the detent ring 220, as seen in Fig. 3C. Van Stiphout discloses a driven gear 16 located on the shaft 4, and where the driven gear 16 comprises position regulation protrusions 19 configured to be seated in shaft recesses 29 formed in the shaft 4 in a coupled state of the driven gear 16 to the shaft 4 (as seen in Fig. 2 above). Based on this interpretation of van Stiphout, the Examiner submits that the amended claims are anticipated by van Stiphout. 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 MICHAEL D MCDUFFIE whose telephone number is (571)272-3832. The examiner can normally be reached M-F, 8AM-4:30PM. 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, Terrell McKinnon can be reached at 571-272-4797. 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. /Michael McDuffie/Examiner, Art Unit 3632 6-Aug-26 /TERRELL L MCKINNON/Supervisory Patent Examiner, Art Unit 3632
Read full office action

Prosecution Timeline

Nov 19, 2024
Application Filed
Feb 25, 2026
Non-Final Rejection mailed — §102, §103, §112
May 26, 2026
Response Filed
Aug 12, 2026
Final Rejection mailed — §102, §103, §112 (current)

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Prosecution Projections

3-4
Expected OA Rounds
68%
Grant Probability
57%
With Interview (-10.3%)
2y 6m (~8m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 852 resolved cases by this examiner. Grant probability derived from career allowance rate.

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