Prosecution Insights
Last updated: April 19, 2026
Application No. 19/112,990

CAPLESS FUEL FILLER ASSEMBLY

Non-Final OA §103§112
Filed
Mar 19, 2025
Examiner
ALLEN, JEFFREY R
Art Unit
3733
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Nissan Motor Co., Ltd.
OA Round
1 (Non-Final)
47%
Grant Probability
Moderate
1-2
OA Rounds
3y 6m
To Grant
73%
With Interview

Examiner Intelligence

Grants 47% of resolved cases
47%
Career Allow Rate
512 granted / 1086 resolved
-22.9% vs TC avg
Strong +26% interview lift
Without
With
+26.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
72 currently pending
Career history
1158
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
49.2%
+9.2% vs TC avg
§102
23.2%
-16.8% vs TC avg
§112
22.1%
-17.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1086 resolved cases

Office Action

§103 §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 . 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 and 2 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. Claims 1 and 2 recite “an inner surface of a flow path of the liquid fuel”. It is unclear if the inner surface is part of the main body or if the inner surface is based on the liquid fuel. Claims 1 and 2 recite the guide rib “extending parallel to the flow path formed on the inner surface of the flow path”. It is unclear if there is another flow path defined by the first claimed flow path. 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(s) 1 and 2 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kubo et al. (US-20180105414-A1) in view of Song et al. (US-20190255939-A1). Kubo discloses a capless fuel filler assembly (Fig. 6) configured to be attached to a distal end of a filler pipe extending from a fuel tank, the capless fuel filler assembly comprising: a main body (150) having a fuel filler through which a nozzle (FN) of a filler gun is inserted; and a pair of stopper ribs (160) that project inward from an inner surface of a flow path of a liquid fuel formed in the main body and that regulate an insertion depth of the nozzle (par. 0041, Fig. 9), wherein the pair of stopper ribs project inward toward each other (par. 0047), and a the shortest distance between the pair of stopper ribs is set to be smaller than an outer diameter of a distal end of the nozzle (Fig. 9). Kubo fails to teach a flap valve for opening and closing the fuel filler, that is disposed in the main body such that the flap valve can be opened and closed, a guide rib configured to guide an insertion of the nozzle, the guide rib projecting in a direction intersecting a projecting direction of the pair of stopper ribs, and extending parallel to the flow path formed on the inner surface of the flow path, the guide rib has a front edge located in front of rear edges of the pair of stopper ribs in an insertion direction of the nozzle, and a height of the guide rib from the inner surface is a height in which an insertion of the nozzle is guided such that a portion of the distal end of the nozzle having a maximum width in the projecting direction abuts against the pair of stopper ribs. Song teaches that it was known in the art to manufacture a fuel filler assembly with a flap valve (210) for opening and closing the fuel filler, that is disposed in the main body such that the flap valve can be opened and closed (par. 0029), a guide rib (225) configured to guide an insertion of the nozzle (par. 0031), the guide rib projecting in a direction intersecting a projecting direction inwardly extending portions, and extending parallel to a flow path (Fig. 2), the guide rib has a front edge located in front of rear edges of components attached to an inner surface of the main body (Fig. 2) , and a height of the guide rib from the inner surface is a height in which an insertion of the nozzle is guided such that a portion of the distal end of the nozzle having a maximum width in the projecting direction would abut against inner projecting portions (par. 0031, Fig. 2). It would have been obvious to one of ordinary skill in the art before the effective filing date to have manufactured the assembly with a flap valve, as taught by Song, in order to prevent unwanted items from being inserted. It would have been obvious to one of ordinary skill in the art before the effective filing date to have manufactured the assembly with a guide rib, as taught by Song, in order to guide the nozzle of a filler gun toward a centered position. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JEFFREY R ALLEN whose telephone number is (571)270-7426. The examiner can normally be reached 9:00 am - 5:00 pm, Monday-Friday. 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, Nathan Jenness can be reached at (571)270-5055. 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. /JEFFREY R ALLEN/Primary Examiner, Art Unit 3733
Read full office action

Prosecution Timeline

Mar 19, 2025
Application Filed
Mar 05, 2026
Non-Final Rejection — §103, §112 (current)

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

1-2
Expected OA Rounds
47%
Grant Probability
73%
With Interview (+26.2%)
3y 6m
Median Time to Grant
Low
PTA Risk
Based on 1086 resolved cases by this examiner. Grant probability derived from career allow rate.

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