Prosecution Insights
Last updated: May 04, 2026
Application No. 17/822,721

CHIMERIC HIV VIRUS-LIKE PARTICLES

Final Rejection §112
Filed
Aug 26, 2022
Priority
Aug 27, 2021 — provisional 63/237,847
Examiner
KINSEY WHITE, NICOLE ERIN
Art Unit
1672
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Fruitvaccine Inc.
OA Round
2 (Final)
58%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
74%
With Interview

Examiner Intelligence

Grants 58% of resolved cases
58%
Career Allowance Rate
494 granted / 859 resolved
-2.5% vs TC avg
Strong +16% interview lift
Without
With
+16.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
31 currently pending
Career history
890
Total Applications
across all art units

Statute-Specific Performance

§101
3.2%
-36.8% vs TC avg
§103
31.8%
-8.2% vs TC avg
§102
18.3%
-21.7% vs TC avg
§112
29.4%
-10.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 859 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 . Election/Restrictions Applicant’s election without traverse of Group I and species i) the gp41 fragment of claim 5 and ii) SARS-CoV as the source of the antigen in the reply filed on 6/16/2025 is acknowledged. Status of the Claims Claims 14-20 have been withdraw as being directed to a non-elected invention. Claims 6 and 10-13 have been withdrawn as being directed to a non-elected species. Claims 1-5 and 7-9 are under examination at this time. Specification The use of trademarks has been noted in this application. A trademark should be capitalized wherever it appears and be accompanied by the generic terminology. Although the use of trademarks is permissible in patent applications, the proprietary nature of the marks should be respected and every effort made to prevent their use in any manner, which might adversely affect their validity as trademarks. 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. Claims 1-5 and 7-9 are 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. The instant claims are directed to a human immunodeficiency virus (HIV) virus-like particle (VLP) comprising: a Gag protein; a fragment of gp41 protein comprising the C-terminal cytosolic domain of the gp41 protein; and an antigen, wherein the antigen is not a peptide or protein from HIV and is linked to the fragment of gp41 protein. The specification and Figure 2 depict the claimed VLPs as having a membrane structure with the gp41 fragment inserted therein. However, claim 1 does not describe a membrane begin present in the VLPs. Claims 4, 5 and 7 recite that the gp41 fragment contains the “transmembrane domain”, but there is no membrane structure recited that the transmembrane domain traverses. Thus, it is not clear how the VLPs can contain a transmembrane domain of gp41 without a membrane structure being present in the VLPs. Accordingly, one of ordinary skill in the art will not know the metes and bounds of the claim. Claim 7 recites the limitation "the C-terminus ectodomain of the antigen" in line 1. There is insufficient antecedent basis for this limitation in the claim. Claim 8 recites the limitation "the C-terminus of the transmembrane domain of the antigen" in line 1. There is insufficient antecedent basis for this limitation in the claim. Conclusion No claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Nicole Kinsey White whose telephone number is (571)272-9943. The examiner can normally be reached M to Th 6:30 am to 6:00 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, Thomas Visone can be reached at 571-270-0684. 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. /NICOLE KINSEY WHITE/Primary Examiner, Art Unit 1672
Read full office action

Prosecution Timeline

Aug 26, 2022
Application Filed
Oct 23, 2025
Non-Final Rejection — §112
Jan 27, 2026
Response Filed
Apr 29, 2026
Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12612433
HEPADNAVIRUS CAPSID PROTEIN HETERODIMERS AND VIRUS-LIKE PARTICLES
3y 8m to grant Granted Apr 28, 2026
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TYMOVIRUS VIRUS AND VIRUS-LIKE PARTICLES AS NANOCARRIERS FOR IMAGING AND THERAPEUTIC AGENTS
2y 7m to grant Granted Apr 21, 2026
Patent 12589145
SYSTEMS TO PRODUCE B CELLS GENETICALLY MODIFIED TO EXPRESS SELECTED ANTIBODIES
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Patent 12584917
RECOMBINANT ANTIBODIES, KITS COMPRISING THE SAME, AND USES THEREOF
3y 4m to grant Granted Mar 24, 2026
Patent 12584147
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2y 10m to grant Granted Mar 24, 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
58%
Grant Probability
74%
With Interview (+16.2%)
3y 2m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 859 resolved cases by this examiner. Grant probability derived from career allowance rate.

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