Prosecution Insights
Last updated: April 19, 2026
Application No. 18/666,952

COIL-TYPE FLUID-IMPERVIOUS ZIPPER AND COMMERCIAL PRODUCT USING SAME

Non-Final OA §102§103
Filed
May 17, 2024
Examiner
MERCADO, LOUIS A
Art Unit
3677
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Shiu-Yin Cheng
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
2y 4m
To Grant
97%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
529 granted / 666 resolved
+27.4% vs TC avg
Strong +18% interview lift
Without
With
+17.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
43 currently pending
Career history
709
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
32.9%
-7.1% vs TC avg
§102
44.8%
+4.8% vs TC avg
§112
17.5%
-22.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 666 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 . 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. Claims 1-12, 14 and 15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Chou (US Publication No. 2021/0107244). Regarding claim 1, Chou discloses a coil-type fluid-impervious zipper including: a left chain connected with a left supporting fabric tape and a right chain connected with a right supporting fabric tape (see annotated Fig. 7, and paragraph [0082]); wherein a left filler structure made of a first thermoplastic elastomer is formed within the left chain, a right filler structure made of the first thermoplastic elastomer is formed within the right chain, a left attachment strip made of a second thermoplastic elastomer is connected to a right side of the left filler structure, a right attachment strip made of the second thermoplastic elastomer is connected to a left side of the right filler structure, and when the coil-type fluid-impervious zipper is zipped up, the left attachment strip and the right attachment strip are compressed to engage with each other within a first gap formed between the left filler structure and the right filler structure, so as to minimize a seam between the left attachment strip and the right attachment strip (see annotated Fig. 7). PNG media_image1.png 371 795 media_image1.png Greyscale Regarding claim 2, Chou discloses, wherein the left attachment strip and the right attachment strip are formed by dividing an attachment strip filled between and attached with the left filler structure and the right filler structure (see annotated Fig. 7). Regarding claim 3, Chou discloses, wherein the left attachment strip and the right attachment strip are formed by dividing an attachment strip bonded on a combined free end surface formed by a free end surface of the left filler structure and a free end surface of the right filler structure (see annotated Fig. 7). Regarding claim 4, Chou discloses, wherein both the left supporting fabric tape and the right supporting fabric tape have a waterproof layer attached thereon (see annotated Fig. 7, and paragraph [0047]). Regarding claim 5, Chou discloses, wherein both the left attachment strip and the right attachment strip have an extension part, the pair of extension parts covering at least a portion of a top surface of a left filler part of the left filler structure and at least a portion of a top surface of a right filler part of the right filler structure (see annotated Fig. 7). Regarding claim 6, Chou discloses, wherein both a left filler part of the left filler structure and a right filler part of the right filler structure have a waterproof layer attached on a top surface thereof (see annotated Fig. 7, and paragraph [0047]). Regarding claim 7, Chou discloses, wherein both a left filler part of the left filler structure and a right filler part of the right filler structure have a waterproof layer attached on a top surface thereof, and both the left attachment strip and the right attachment strip have an extension part, the pair of extension parts covering at least a portion of the waterproof layer atop the left filler part and at least a portion of the waterproof layer atop the right filler part (see annotated Fig. 7, and paragraph [0047]). Regarding claim 8, Chou discloses, wherein the left attachment strip and the right attachment strip are formed separately (see annotated Fig. 7). Regarding claim 9, Chou discloses, wherein the left attachment strip is formed at a right end of a left half of a layer of the second thermoplastic elastomer, the left half covering the left supporting fabric tape and a left filler part of the left filler structure, and the right attachment strip is formed at a left end of a right half of the layer of the second thermoplastic elastomer, the right half covering the right supporting fabric tape and a right filler part of the right filler structure; and the left half of the layer of the second thermoplastic elastomer has a left half of a waterproof layer attached thereon, and the right half of the layer of the second thermoplastic elastomer has a right half of the waterproof layer attached thereon (see annotated Fig. 7, and paragraph [0047]). Regarding claim 10, Chou discloses, wherein the left attachment strip covers a top surface and a free end surface of a left filler part of the left filler structure, and the right attachment strip covers a top surface and a free end surface of a right filler part of the right filler structure (see annotated Fig. 7). Regarding claim 11, Chou discloses, wherein the left attachment strip covers a top surface and a free end surface of a left filler part of the left filler structure and has a top surface substantially flush with a top surface of the left supporting fabric tape; the right attachment strip covers a top surface and a free end surface of a right filler part of the right filler structure and has a top surface substantially flush with a top surface of the right supporting fabric tape; a left half of a waterproof layer covers the top surface of the left filler part and the top surface of the left supporting fabric tape; and a right half of the waterproof layer covers the top surface of the right filler part and the top surface of the right supporting fabric tape (see annotated Fig. 7). Regarding claim 12, Chou discloses, wherein a left half of a waterproof layer is attached to the left supporting fabric tape by an adhesive, and a right half of the waterproof layer is attached to the right supporting fabric tape by the adhesive (see annotated Fig. 7, and paragraph [0082]). Regarding claim 14, Chou discloses a commercial product including the coil-type fluid-impervious zipper (see annotated Fig. 7, and paragraph [0084]). Regarding claim 15, Chou discloses, being an article of commercial product selected from a group consisting of an article of clothes, an article carrier, and a camping gear (see paragraph [0084]). 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. Claim 13 is rejected under 35 U.S.C. 103 as being unpatentable over Chou (US Publication No. 2021/0107244), in view of Kameyama et al. (US Patent No. 10,433,620). Regarding claim 13, Chou discloses the claimed invention, except that both the left supporting fabric tape and the right supporting fabric tape have a water-repellent agent covering a surface thereof. However, Kameyama et al. teaches a water repellent agent to apply to a surface (see Col. 11, lines 25-30). Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the claimed invention to apply a water repellent agent to the fastener tapes from Chou in order to enhance and repel water from the fastener tapes as taught by Kameyama. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to LOUIS A MERCADO whose telephone number is (571)270-5388. The examiner can normally be reached Monday - Friday 8:00 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, Jason W. San can be reached at 571-272-6531. 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. /LOUIS A. MERCADO/ Examiner Art Unit 3677 /JASON W SAN/SPE, Art Unit 3677
Read full office action

Prosecution Timeline

May 17, 2024
Application Filed
Sep 27, 2025
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599246
BED SHEET RETENTION SYSTEMS, SYSTEM COMPONENTS, AND METHODS OF MAKING AND USING THE SAME
2y 5m to grant Granted Apr 14, 2026
Patent 12569038
GARMENTS WITH SEMI-PRECIOUS STONE SNAPS
2y 5m to grant Granted Mar 10, 2026
Patent 12557883
SYSTEM FOR INTERLOCKING FASTENER
2y 5m to grant Granted Feb 24, 2026
Patent 12553495
CORD STOPPER
2y 5m to grant Granted Feb 17, 2026
Patent 12540639
Fastening Clip
2y 5m to grant Granted Feb 03, 2026
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
79%
Grant Probability
97%
With Interview (+17.9%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 666 resolved cases by this examiner. Grant probability derived from career allow rate.

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