Office Action Predictor
Last updated: April 16, 2026
Application No. 17/605,966

RADIATION-RESISTANT INORGANIC MATERIAL AND FIBER THEREOF

Final Rejection §DP
Filed
Oct 22, 2021
Examiner
BOLDEN, ELIZABETH A
Art Unit
1731
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Nippon Fiber Corporation
OA Round
2 (Final)
85%
Grant Probability
Favorable
3-4
OA Rounds
2y 7m
To Grant
99%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allow Rate
794 granted / 932 resolved
+20.2% vs TC avg
Strong +20% interview lift
Without
With
+20.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
24 currently pending
Career history
956
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
24.7%
-15.3% vs TC avg
§102
32.2%
-7.8% vs TC avg
§112
23.8%
-16.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 932 resolved cases

Office Action

§DP
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 . Election/Restrictions Claims 3-6, 19, and 24 are directed to an allowable product. Pursuant to the procedures set forth in MPEP § 821.04(b), claims 7-14, 17, 20, 22, 25, and 27, directed to the process of making or using the allowable product, previously withdrawn from consideration as a result of a restriction requirement, are hereby rejoined and fully examined for patentability under 37 CFR 1.104. Claims 1, 2, 15, 16, 18, 21, 23, and 26, directed to the invention(s) of do not require all the limitations of an allowable product claim, and have NOT been rejoined. Because a claimed invention previously withdrawn from consideration under 37 CFR 1.142 has been rejoined, the restriction requirement between groups II, III, and V as set forth in the Office action mailed on 1 April 2025 is hereby withdrawn. In view of the withdrawal of the restriction requirement as to the rejoined inventions, applicant(s) are advised that if any claim presented in a divisional application is anticipated by, or includes all the limitations of, a claim that is allowable in the present application, such claim may be subject to provisional statutory and/or nonstatutory double patenting rejections over the claims of the instant application. Once the restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. This application is in condition for allowance except for the presence of claims 1, 2, 15, 16, 18, 21, 23, and 26 directed to an invention non-elected with traverse in the reply filed on 27 June 2025. Applicant is given TWO (2) MONTHS from the date of this letter to cancel the noted claims or take other appropriate action (37 CFR 1.144). Failure to take action during this period will be treated as authorization to cancel the noted claims by Examiner’s Amendment and pass the case to issue. Extensions of time under 37 CFR 1.136(a) will not be permitted since this application will be passed to issue. The prosecution of this case is closed except for consideration of the above matter. Examiner’s Comment As to the claims 1, 2, 15, 16, 18, 21, 23, and 26 of Groups I and IV, while the claims recite an inorganic material having a composition similar to the fiber composition of claim 3, the inorganic material does not need to be in the form of a fiber. Such a material is disclosed in at least Tavares et al., US 2016/0097125 A1, paragraph [0018], Examples G3 and G4 of “Magnetic properties of glasses with high iron oxide content” by Romero-Perez et al., and Examples 2 and 6 of JP 10-167754 A by Masatoshi. Allowable Subject Matter Claims 3-14, 17, 19, 20, 22, 24, 25, and 27 are allowed. Reasons for Allowance The following is an examiner’s statement of reasons for allowance: The prior art fail to disclose or suggest with sufficient specificity a fiber comprising an inorganic material, a method of making an inorganic fiber, and a method for suppressing radiation-induced deterioration of a fiber-reinforced composite comprising the fiber comprising an inorganic material in the mass percentages as recited in the instant claims. Specifically, the prior art fails to disclose or teach a fiber comprising 21-25 mass % of Fe2O3, 5-25% of CaO, and 40-70% of SiO2+Al2O3, having a Al2O3/(SiO2+Al2O3) mass ratio of 0.15-0.40. The closest prior art is deemed to be US 2008/0191179 A1 by Bernard et al. Bernard et al. disclose a similar composition but does not teach the inorganic material comprises the recited amount of Fe2O3. In addition, the present claims are deemed allowable over the references of record for substantially the reasons set forth by the Applicants in the response filed 7 November 2025, which have been found persuasive. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Response to Arguments Applicant’s arguments, see pages 1-4, filed 7 November 2025, with respect to claims 3-6, 19, and 24 have been fully considered and are persuasive. The rejection of claims 3-6, 19, and 24 has been withdrawn. 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 Elizabeth A. Bolden whose telephone number is (571)272-1363. The examiner can normally be reached 10:00 am to 6:30 pm M-F. 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, Amber R. Orlando can be reached at 571-270-3149. 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. /Elizabeth A. Bolden/Primary Examiner, Art Unit 1731 EAB 19 March 2026
Read full office action

Prosecution Timeline

Oct 22, 2021
Application Filed
Aug 06, 2025
Non-Final Rejection — §DP
Oct 22, 2025
Interview Requested
Oct 30, 2025
Applicant Interview (Telephonic)
Oct 31, 2025
Examiner Interview Summary
Nov 07, 2025
Response Filed
Mar 19, 2026
Final Rejection — §DP
Apr 09, 2026
Response after Non-Final Action

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600665
FIBERGLASS COMPOSITION FOR HIGHER MODULUS
2y 5m to grant Granted Apr 14, 2026
Patent 12583783
LITHIUM CONTAINING GLASSES
2y 5m to grant Granted Mar 24, 2026
Patent 12577146
BORATE AND SILICOBORATE OPTICAL GLASSES WITH HIGH REFRACTIVE INDEX AND LOW LIQUIDUS TEMPERATURE
2y 5m to grant Granted Mar 17, 2026
Patent 12577145
Low Iron, High Redox Ratio, and High Iron, High Redox Ratio, Soda-Lime-Silica Glasses and Methods of Making Same
2y 5m to grant Granted Mar 17, 2026
Patent 12570570
GLASSES WITH IMPROVED ION EXCHANGEABILITY
2y 5m to grant Granted Mar 10, 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
85%
Grant Probability
99%
With Interview (+20.2%)
2y 7m
Median Time to Grant
Moderate
PTA Risk
Based on 932 resolved cases by this examiner. Grant probability derived from career allow rate.

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