Prosecution Insights
Last updated: October 04, 2026
Application No. 18/565,600

SYNTHETIC FIBER PROCESSING AGENT, AND SYNTHETIC FIBER

Non-Final OA §112
Filed
Nov 30, 2023
Priority
Jun 04, 2021 — JP 2021-094516 +2 more
Examiner
KHAN, AMINA S
Art Unit
1761
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Takemoto Yushi Kabushiki Kaisha
OA Round
3 (Non-Final)
48%
Grant Probability
Moderate
3-4
OA Rounds
5m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 48% of resolved cases
48%
Career Allowance Rate
494 granted / 1039 resolved
-17.5% vs TC avg
Strong +43% interview lift
Without
With
+43.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
56 currently pending
Career history
1096
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
64.3%
+24.3% vs TC avg
§102
9.8%
-30.2% vs TC avg
§112
17.8%
-22.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1039 resolved cases

Office Action

§112
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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 June 23, 2026 has been entered. Claims 1,2 and 5-8 are pending. Claim 1 has been amended. Claims 3 and 4 have been cancelled. All prior rejections are withdrawn in view of applicant’s amendments to the claims. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 6 is 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 6 has concentration limitations which are broader than those of claim 1 from which claim 6 depends. For example is A is 30%, B is 20% and C is 50%, taking A+B as 100% (30 +20=50) a is 30/50 or 60% and B is 20/50 or 40%. Claim 6 broadens the scope of claim 1 which is not permitted. Allowable Subject Matter Claims 1,2,5,7 and 8 are allowed. The claims are allowed because the prior art does not teach or fairly suggest the superior combination of spun fiber bundling, flame resistant bundling and strength properties demonstrated in Applicant’ specification Table 1 achieved with the claimed ratio of applicant’s claimed amine derivative (A) and smoothing agent (B). Response to Arguments Applicant’s arguments with respect to claim 6 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to AMINA S KHAN whose telephone number is (571)272-5573. The examiner can normally be reached Monday-Friday, 9am-5:30pm 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, Angela Brown-Pettigrew can be reached at 571-272-2817. 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. /AMINA S KHAN/Primary Examiner, Art Unit 1761
Read full office action

Prosecution Timeline

Nov 30, 2023
Application Filed
Dec 02, 2025
Non-Final Rejection mailed — §112
Mar 02, 2026
Response Filed
Mar 24, 2026
Final Rejection mailed — §112
Jun 23, 2026
Response after Non-Final Action
Jun 23, 2026
Request for Continued Examination
Jun 24, 2026
Response after Non-Final Action
Aug 26, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12703725
Silk-Based Products, Formulations, and Methods of Use
4y 3m to grant Granted Aug 11, 2026
Patent 12703887
METHOD FOR THE ANTIMICROBIAL PROTECTION OF HIDES DURING THE TANNING PROCESS WHICH INCLUDES A BIOCIDAL COMPOSITION AND A LUMINESCENT ADDITIVE ALLOWING THE IDENTIFICATION THEREOF
1y 12m to grant Granted Aug 11, 2026
Patent 12680226
ANTIBACTERIAL AND ANTIVIRAL FABRIC
3y 9m to grant Granted Jul 14, 2026
Patent 12617964
DIGITAL PRINTED FABRIC, MANUFACTURING METHOD FOR DIGITAL PRINTED FABRIC, AND DIGITAL PRINTING INK
3y 11m to grant Granted May 05, 2026
Patent 12606952
METHOD FOR PRODUCING MODIFIED CELLULOSE FIBER, AND MODIFIED CELLULOSE FIBER
5y 5m to grant Granted Apr 21, 2026
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
48%
Grant Probability
90%
With Interview (+43.0%)
3y 3m (~5m remaining)
Median Time to Grant
High
PTA Risk
Based on 1039 resolved cases by this examiner. Grant probability derived from career allowance rate.

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