Prosecution Insights
Last updated: April 19, 2026
Application No. 18/337,423

Flexible printed circuit

Non-Final OA §102§103
Filed
Jun 19, 2023
Examiner
THOMPSON, TIMOTHY J
Art Unit
2847
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Aac Microtech (Changzhou) Co. Ltd.
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
2y 6m
To Grant
64%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allow Rate
232 granted / 275 resolved
+16.4% vs TC avg
Minimal -21% lift
Without
With
+-20.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
34 currently pending
Career history
309
Total Applications
across all art units

Statute-Specific Performance

§103
53.9%
+13.9% vs TC avg
§102
36.0%
-4.0% vs TC avg
§112
6.3%
-33.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 275 resolved cases

Office Action

§102 §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 . Priority Acknowledgment is made of applicant’s claim for foreign priority under 35 U.S.C. 119 (a)-(d). The certified copy has been received / retrieved and recorded. Claim Objections Claims 3-6 are objected to because of the following informalities: Regarding claim 3, “a adhesive” may be - - an adhesive - -, line 3. Claims 4-6 depend upon claim 3 and inherit the same deficiency. Further, regarding claim 4, “PI” used in the claim for the first time should be fully spelled. Appropriate correction is required. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-3 and 5-7 is/are rejected under 35 U.S.C. 102 (a) (1) as being anticipated by Yan-Iu (CN1065610170A). Regarding claim 1, Yan-Iu, figure 9, discloses a flexible printed circuit comprising: a substrate layer (21), a line layer (40) fixed to the substrate layer and two protective layers (51, 52) wrapped on both sides of the substrate layer to cover the line layer, wherein, the line layer is embedded in the substrate layer (see figure) and the surface of the line layer is flush with the surface of the substrate layer (see figure). Regarding claim 2, Yan-Iu further discloses wherein the substrate layer is a light-sensitive overlay film (photosensitive resin 21). Regarding claim 3, Yan-Iu further discloses wherein the protective layer includes an insulating layer located on one side of the substrate layer, and an adhesive layer fixed between the insulating layer and the substrate layer and connecting the insulating layer and the substrate layer as one (adhesive layer 511, 521). Regarding claim 5, Yan-Iu further discloses wherein the surface of the insulating layer on a side away from the substrate layer is a flat plane (see figure). Regarding claim 6, Yan-Iu further discloses wherein the adhesive layer is fully laminated to the substrate layer and the line layer (see figure). Regarding claim 7, Yan-Iu further discloses wherein the substrate layer has a cavity through the substrate layer, the line layer being completely filled within the cavity (see figure). Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 4 and 8 are is/are rejected under 35 U.S.C. 103 as being unpatentable over Yan-Iu, as applied to claim 1 above, and further in view of Kapusta (US 2019/0043802), and Happoya (US 2016/0143150). Regarding claim 3, Yan-Iu does not disclose wherein the material of the insulating layer is PI material. Kapusta, discloses a board with flexible polyimide material (paragraph 0050). Happoya, discloses a board with base film made of flexible polyimide material (paragraph 0025). Therefore, it would have been obvious to a person having ordinary skill in the art at the time of effective filing date of the application to provide the flexible circuit of Yan-Iu with the insulating material formed of flexible polyimide material. Additionally, it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended use as a matter of obvious design choice. In re Leshin, 227 F.2d 197, USPQ 416 (CCPA 1960). Regarding claim 8, Yan-Iu, though, discloses circuit line formed by electroplating, does not explicitly the material is copper. Kapusta, discloses a circuit board formed of electroplated copper (paragraph 0065). Therefore, it would have been obvious to a person having ordinary skill in the art at the time of effective filing date of the application to provide the flexible circuit of Yan-Iu with the line layer being copper, as taught by Kapusta, in order to have enhance conductivity. Additionally, it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended use as a matter of obvious design choice. In re Leshin, 227 F.2d 197, USPQ 416 (CCPA 1960). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Echigo (US 6,274,821), figure 1, discloses a circuit board with a substrate (L2R), a line layer (6), and protective layers (L1i and L2i), including the line layer embedded in the substrate layer and the surface of the line layer is flush with the surface of the substrate layer. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ISHWARBHAI B PATEL whose telephone number is (571)272-1933. The examiner can normally be reached M-F: 8:30 AM-5:00 PM. 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, Timothy J Thompson can be reached at 571 272 2342. 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. /ISHWARBHAI B PATEL/Primary Examiner, Art Unit 2847 IBP / April 24, 2025
Read full office action

Prosecution Timeline

Jun 19, 2023
Application Filed
Apr 25, 2025
Non-Final Rejection — §102, §103
Jul 30, 2025
Response Filed

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

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Prosecution Projections

1-2
Expected OA Rounds
84%
Grant Probability
64%
With Interview (-20.6%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 275 resolved cases by this examiner. Grant probability derived from career allow rate.

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