Prosecution Insights
Last updated: July 17, 2026
Application No. 18/178,819

CHIMERIC ANTIGEN RECEPTORS AND USES THEREOF

Non-Final OA §112
Filed
Mar 06, 2023
Priority
Apr 29, 2016 — provisional 62/330,048 +3 more
Examiner
DUFFY, PATRICIA ANN
Art Unit
1645
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
University of Florida Research Foundation Inc.
OA Round
2 (Non-Final)
53%
Grant Probability
Moderate
2-3
OA Rounds
3m
Est. Remaining
87%
With Interview

Examiner Intelligence

Grants 53% of resolved cases
53%
Career Allowance Rate
300 granted / 569 resolved
-7.3% vs TC avg
Strong +34% interview lift
Without
With
+34.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
43 currently pending
Career history
615
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
46.7%
+6.7% vs TC avg
§102
17.1%
-22.9% vs TC avg
§112
31.7%
-8.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 569 resolved cases

Office Action

§112
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 . The text of Title 35 of the U.S. Code not reiterated herein can be found in the previous office action. RESPONSE TO AMENDMENT The amendment filed 4-10-2026 has been entered into the record. Claims 15, 18-20 and 22-26 are pending and under examination. The substitute specification filed 4-10-2026 has been entered into the record. Information Disclosure Statement The information disclosure statement filed 4-10-2026 has been considered. An initialed copy is enclosed. Objections/Rejections Withdrawn The sequence requirement has been withdrawn in view of the properly filed substitute specification that resolves the noted issue. Rejections Maintained Claims 15, 18-20 and 22-26 stand rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the enablement requirement for reasons set forth for claims 15-26 in the Office action mailed 1-12-2026. Applicant’s arguments have been carefully considered but are not persuasive. Applicant argues that since the amendment removes “treating a subject having cancer” from the preamble of the claim, the administration step is fully enabled. It is noted that the administration step has been amended to include that the administering is to a subject having differentiated thyroid cancer. The claims are read in-light-of the specification. By divorcing the disclosed uses from the administration step and the patient population, Applicant apparently argues that administration of the immune CAR cell does not have to meet the most basic tenant of 112(a) as teaching how to use the immune CAR cell as claimed. The administration of the anti-TSHR immune cell CAR is disclosed in the specification as providing for cell killing to provide for an anti-tumor effect or cell killing providing for treatment of the tumor/cancer (see specification paragraph bridging pages 3-4 and page 8, lines 8-12). The claims have been considered given all the disclosed administration uses provided for in the specification. The specification provides for no apparent use for administration other than those relied upon above. Thus, considering all the uses disclosed for the administration process to subjects having differentiated thyroid cancer, the claims remain non-enabled for any of those uses for reasons set forth in the Office Action mailed 1-12-2026. Therefore, removal of the “treating” as set forth in the preamble, does not enable the remaining disclosed uses of administration of the claimed immune cell CAR in the specification. The removal of therapeutic does not abrogate the rejection as it applies to the other disclosed use such as an anti-tumor effect by means of cell killing The claimed method must be enabled for a single disclosed use of administration of the recited CAR. As such, Applicant’s arguments are not persuasive. Status of Claims All claims stand rejected. Conclusion THIS ACTION IS MADE FINAL. 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 extension fee 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 Patricia Duffy whose telephone number is (571)272-0855. The examiner can normally be reached 8:00 am - 4 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, Jeffrey Stucker can be reached at 571-272-0911. 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. /Patricia Duffy/Primary Examiner, Art Unit 1645
Read full office action

Prosecution Timeline

Mar 06, 2023
Application Filed
Dec 01, 2025
Non-Final Rejection (signed) — §112
Jan 12, 2026
Non-Final Rejection mailed — §112
Apr 10, 2026
Response Filed
May 05, 2026
Final Rejection mailed — §112
Jul 06, 2026
Response after Non-Final Action

Precedent Cases

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

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Prosecution Projections

2-3
Expected OA Rounds
53%
Grant Probability
87%
With Interview (+34.2%)
3y 7m (~3m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 569 resolved cases by this examiner. Grant probability derived from career allowance rate.

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