Prosecution Insights
Last updated: August 17, 2026
Application No. 18/644,195

Information Handling System Antenna System Parasitic Element For Improved Closed Mode Wireless Performance

Non-Final OA §103
Filed
Apr 24, 2024
Examiner
BACK, AUSTIN M
Art Unit
2845
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Dell Products L.P.
OA Round
3 (Non-Final)
77%
Grant Probability
Favorable
3-4
OA Rounds
3m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
54 granted / 70 resolved
+9.1% vs TC avg
Strong +26% interview lift
Without
With
+26.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
26 currently pending
Career history
95
Total Applications
across all art units

Statute-Specific Performance

§103
60.2%
+20.2% vs TC avg
§102
24.1%
-15.9% vs TC avg
§112
15.4%
-24.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 70 resolved cases

Office Action

§103
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 06/18/2026 has been entered. Response to Arguments Applicant’s arguments with respect to claim(s) 1-12 have been considered but are moot because the new ground of rejection does not rely on any combination of reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. 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. 1-12 are rejected under 35 U.S.C. 103 as being unpatentable over Lim et al. (US20240313391; hereinafter Lim) in view of Vesterinen et al. (US20080001822; hereinafter Vesterinen). Regarding claim 1, Lim (figs. 4-5) discloses “An antenna system comprising: a base chassis antenna component (351-352) contained within a base chassis (310) of an information handling system,; and, a display chassis parasitic element (361) contained within a display chassis of the information handing system, the display chassis parasitic element being parasitically coupled with the base chassis antenna component when the information handing system is operating in a lid-closed mode of operation ([0008]; According to an embodiment of the present disclosure, an portable communication device may include a flexible display; a wireless communication circuit; a switching circuit; and a housing including a first housing portion and a second housing portion, the first housing portion accommodating a first display portion of the flexible display, the second housing portion accommodating a second display portion of the flexible display and the switching circuit, a first lateral side of the first housing portion including a first conductive portion and a first non-conductive portion, the first conductive portion being electrically connected with the wireless communication circuit, a second lateral side of the second housing portion including a second conductive portion and a second non-conductive portion, the second conductive portion being configured to be at least partially aligned with the first conductive portion and the second non-conductive portion being configured to be at least partially aligned with the first non-conductive portion, when the housing is folded, and the second conductive portion being configured to be selectively electrically connected with a ground member via the switching circuit), the display chassis parasitic carrier component extending substantially parallel to the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation (¶[0131]; FIG. 3C illustrates a second folded state of the electronic device 300. For example, the third folded state may represent a state in which the second housing 320 rotates about an axis A1 as a rotation axis to cover the third side 343 of the first housing 310. In the third folded state, the first display 311 of the first housing 310 and the second display 321 of the second housing 320 may be exposed in opposite directions)”. Lim does not disclose “the base chassis antenna component including an antenna top trace, the antenna top trace being positioned along a top exterior wall of the base chassis antenna carrier component”, “the display chassis parasitic element comprises a display chassis parasitic carrier component and a display chassis parasitic side trace”, or “a base of the parasitic side trace extending substantially parallel with the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation”. However, Vesterinen teaches “the base chassis antenna component (1) including an antenna top trace (50), the antenna top trace being positioned along a top exterior wall of the base chassis antenna carrier component (fig. 1a)” and “the display chassis parasitic element (1) comprises a display chassis parasitic carrier component (10) and a display chassis parasitic side trace (50)”. By making the simple substitution of antenna elements one would also arrive to the result of “a base of the parasitic side trace extending substantially parallel with the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation (these traces (50) would be parallel when the device is folded)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system where the base chassis antenna component including an antenna top trace, the antenna top trace being positioned along a top exterior wall of the base chassis antenna carrier component, the display chassis parasitic element comprises a display chassis parasitic carrier component and a display chassis parasitic side trace, and a base of the parasitic side trace extending substantially parallel with the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation, in order to generate the desired radiation pattern. Regarding claim 2, Lim (figs. 4-5) discloses the antenna system of claim 1 as shown previously. Lim does not disclose “wherein: the display chassis parasitic side trace is positioned along a side wall of the display chassis parasitic carrier component”. However, Vesterinen teaches “wherein: the display chassis parasitic side trace (50) is positioned along a side wall of the display chassis parasitic carrier component (10)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system wherein: the display chassis parasitic side trace is positioned along a side wall of the display chassis parasitic carrier component, in order to improve reception/transmission of the parasitic element. Regarding claim 3, Lim (figs. 4-5) discloses the antenna system of claim 2 as shown previously. Lim does not disclose “wherein: the display chassis parasitic carrier component is at least one of substantially L-shaped and substantially flat”. However, Vesterinen teaches “wherein: the display chassis parasitic carrier component is at least one of substantially L-shaped and substantially flat (50 has an L-shaped section and is flat)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system wherein: the display chassis parasitic carrier component is at least one of substantially L-shaped and substantially flat, in order to generate the desired radiation pattern. Regarding claim 4, Lim (figs. 4-5) discloses the antenna system of claim 2 as shown previously. Lim does not disclose “wherein: the display chassis parasitic side trace is substantially U-shaped”. However, Vesterinen teaches “wherein: the display chassis parasitic side trace is substantially U-shaped (50 has an U-shaped section)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system wherein: the display chassis parasitic side trace is substantially U-shaped, in order to generate the desired radiation pattern. Regarding claim 5, Lim (figs. 4-5) discloses the antenna system of claim 4 as shown previously. Lim does not disclose “the display chassis parasitic side trace comprises a base portion, a right side portion and a left side portion”. However, Vesterinen teaches “the display chassis parasitic side trace comprises a base portion, a right side portion and a left side portion (50 covers three sides of the substrate 10)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system the display chassis parasitic side trace comprises a base portion, a right side portion and a left side portion, in order to generate the desired radiation pattern. Regarding claim 6, Lim (figs. 4-5) discloses the antenna system of claim 5 as shown previously. Lim does not disclose “wherein: the base portion of the display chassis parasitic side trace extends substantially parallel to the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation”. However, Vesterinen teaches “wherein: the base portion of the display chassis parasitic side trace extends substantially parallel to the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation (these traces (50) would be parallel when the device is folded)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system wherein: the base portion of the display chassis parasitic side trace extends substantially parallel to the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation, in order to better couple the components. Regarding claim 7, Lim (figs. 4-5) discloses “An information handling system comprising: a host portion (101), the host portion comprising a processor (120); and ,a data bus (110) coupled to the processor; and, an antenna system communicating with the host portion, the antenna system comprising: a base chassis antenna component (351-352) contained within a base chassis (310) of an information handling system,; and, a display chassis parasitic element (361) contained within a display chassis of the information handing system, the display chassis parasitic element being parasitically coupled with the base chassis antenna component when the information handing system is operating in a lid-closed mode of operation ([0008];), the display chassis parasitic carrier component extending substantially parallel to the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation (¶[0131]; FIG. 3C illustrates a second folded state of the electronic device 300. For example, the third folded state may represent a state in which the second housing 320 rotates about an axis A1 as a rotation axis to cover the third side 343 of the first housing 310. In the third folded state, the first display 311 of the first housing 310 and the second display 321 of the second housing 320 may be exposed in opposite directions)”. Lim does not disclose “the base chassis antenna component including an antenna top trace, the antenna top trace being positioned along a top exterior wall of the base chassis antenna carrier component”, “the display chassis parasitic element comprises a display chassis parasitic carrier component and a display chassis parasitic side trace”, or “a base of the parasitic side trace extending substantially parallel with the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation”. However, Vesterinen teaches “the base chassis antenna component (1) including an antenna top trace (50), the antenna top trace being positioned along a top exterior wall of the base chassis antenna carrier component (fig. 1a)” and “the display chassis parasitic element (1) comprises a display chassis parasitic carrier component (10) and a display chassis parasitic side trace (50)”. By making the simple substitution of antenna elements one would also arrive to the result of “a base of the parasitic side trace extending substantially parallel with the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation (these traces (50) would be parallel when the device is folded)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system where the base chassis antenna component including an antenna top trace, the antenna top trace being positioned along a top exterior wall of the base chassis antenna carrier component, the display chassis parasitic element comprises a display chassis parasitic carrier component and a display chassis parasitic side trace, and a base of the parasitic side trace extending substantially parallel with the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation, in order to generate the desired radiation pattern. Regarding claim 8, Lim (figs. 4-5) discloses the antenna system of claim 7 as shown previously. Lim does not disclose “wherein: the display chassis parasitic side trace is positioned along a side wall of the display chassis parasitic carrier component”. However, Vesterinen teaches “wherein: the display chassis parasitic side trace (50) is positioned along a side wall of the display chassis parasitic carrier component (10)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system wherein: the display chassis parasitic side trace is positioned along a side wall of the display chassis parasitic carrier component, in order to improve reception/transmission of the parasitic element. Regarding claim 9, Lim (figs. 4-5) discloses the antenna system of claim 8 as shown previously. Lim does not disclose “wherein: the display chassis parasitic carrier component is at least one of substantially L-shaped and substantially flat”. However, Vesterinen teaches “wherein: the display chassis parasitic carrier component is at least one of substantially L-shaped and substantially flat (50 has an L-shaped section and is flat)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system wherein: the display chassis parasitic carrier component is at least one of substantially L-shaped and substantially flat, in order to generate the desired radiation pattern. Regarding claim 10, Lim (figs. 4-5) discloses the antenna system of claim 8 as shown previously. Lim does not disclose “wherein: the display chassis parasitic side trace is substantially U-shaped”. However, Vesterinen teaches “wherein: the display chassis parasitic side trace is substantially U-shaped (50 has an U-shaped section)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system wherein: the display chassis parasitic side trace is substantially U-shaped, in order to generate the desired radiation pattern. Regarding claim 11, Lim (figs. 4-5) discloses the antenna system of claim 10 as shown previously. Lim does not disclose “the display chassis parasitic side trace comprises a base portion, a right side portion and a left side portion”. However, Vesterinen teaches “the display chassis parasitic side trace comprises a base portion, a right side portion and a left side portion (50 covers three sides of the substrate 10)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system the display chassis parasitic side trace comprises a base portion, a right side portion and a left side portion, in order to generate the desired radiation pattern. Regarding claim 12, Lim (figs. 4-5) discloses the antenna system of claim 11 as shown previously. Lim does not disclose “wherein: the base portion of the display chassis parasitic side trace extends substantially parallel to the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation”. However, Vesterinen teaches “wherein: the base portion of the display chassis parasitic side trace extends substantially parallel to the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation (these traces (50) would be parallel when the device is folded)”. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the teachings of Vesterinen and make Lim’s antenna system wherein: the base portion of the display chassis parasitic side trace extends substantially parallel to the antenna top trace of the base chassis antenna component when the information handing system is operating in the lid-closed mode of operation, in order to better couple the components. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to AUSTIN MICHAEL BACK whose telephone number is (703)756-4521. The examiner can normally be reached Monday - Friday 8 AM - 5 PM ET. 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, Dimary Lopez can be reached on (571) 270-7893. 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. /AUSTIN M BACK/Examiner, Art Unit 2845 /DIMARY S LOPEZ CRUZ/Supervisory Patent Examiner, Art Unit 2845
Read full office action

Prosecution Timeline

Apr 24, 2024
Application Filed
Aug 27, 2025
Non-Final Rejection mailed — §103
Nov 24, 2025
Response Filed
Mar 31, 2026
Final Rejection mailed — §103
Jun 01, 2026
Response after Non-Final Action
Jun 18, 2026
Request for Continued Examination
Jun 23, 2026
Response after Non-Final Action
Jul 30, 2026
Non-Final Rejection mailed — §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
77%
Grant Probability
99%
With Interview (+26.2%)
2y 7m (~3m remaining)
Median Time to Grant
High
PTA Risk
Based on 70 resolved cases by this examiner. Grant probability derived from career allowance rate.

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