Prosecution Insights
Last updated: April 19, 2026
Application No. 19/028,126

CHASSIS ASSEMBLY AND FUEL TANK FOR GENERATOR SET AND METHOD OF ASSEMBLING CHASSIS ASSEMBLY

Non-Final OA §102§103
Filed
Jan 17, 2025
Examiner
BRAUCH, CHARLES JOSEPH
Art Unit
3747
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Cummins Limited
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
2y 2m
To Grant
96%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allow Rate
968 granted / 1185 resolved
+11.7% vs TC avg
Moderate +14% lift
Without
With
+14.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
32 currently pending
Career history
1217
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
52.8%
+12.8% vs TC avg
§102
31.7%
-8.3% vs TC avg
§112
14.3%
-25.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1185 resolved cases

Office Action

§102 §103
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 § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1, 5, and 13 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by the Matsushita reference (US Patent Publication No. 2020/0212764). 4. Regarding claim 1, the Matsushita reference discloses: a chassis assembly (FIG. 1) for a generator set (1), comprising: a frame (2); a fuel tank (3) disposed in the frame (FIG. 1), the fuel tank (3) comprising a top surface (31); and at least one crossmember (36) disposed at least partially in the fuel tank (3) (FIG. 3), the at least one crossmember comprising: a top plate (FIG. 3—top surface of (36)) disposed level with or below the top surface of the fuel tank (3) (FIG. 3); and a sidewall (FIG. 3—vertical surface of (36)) disposed at least partially in the fuel tank (3) (FIG. 3). 5. Regarding claim 5, the Matsushita reference further discloses: wherein the at least one crossmember comprises one or more openings adjacent to the top plate of the at least one crossmember (FIG. 3). 6. Regarding claim 13, the Matsushita reference discloses: a method of assembling a chassis assembly for a generator set (FIG. 1), wherein the chassis assembly comprises at least one crossmember (FIG. 3), the method comprising: positioning at least a portion of the at least one crossmember (36) in a fuel tank (3), the at least one crossmember comprising: a top plate (FIG. 3—top surface of (36)) forming a portion of a top surface of the fuel tank (FIG. 3—integral with); a sidewall that extends from the top plate (FIG. 3—vertical surface of (36)), wherein the sidewall and the top plate define at least a portion of a channel (FIG. 3—receiving (6) and other parts inside (2)); and a pocket extending from the top plate into the channel (FIG. 3—the area above the top plate that extends into the channel); inserting at least a portion of the sidewall in the fuel tank (FIG. 3); and coupling the at least one crossmember with a frame (2), the fuel tank disposed in the frame (2) (FIG. 1). Claim Rejections - 35 USC § 103 7. 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. 8. Claim(s) 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over the Matsushita reference. 9. Regarding claim 10, the Matsushita reference fails to disclose: wherein the at least one crossmember comprises one or more crossmembers disposed at least partially in the fuel tank. It would have been obvious to one having ordinary skill in the art by the effective filing date of the claimed invention to use wherein the at least one crossmember comprises one or more crossmembers disposed at least partially in the fuel tank, since it has been held that mere duplication of the essential working parts of a device involves only routine skill in the art. MPEP 2144.04 (VI-B). Allowable Subject Matter Claims 19-20 are allowed. Claims 2-4, 6-9, 11-12, and 14-18 objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHARLES J BRAUCH whose telephone number is (313)446-6511. The examiner can normally be reached Monday-Friday 9:00 AM to 6 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, Lindsay Low can be reached at (571) 272-1196. 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. /CHARLES JOSEPH BRAUCH/ Examiner Art Unit 3747 /LONG T TRAN/Primary Examiner, Art Unit 3747
Read full office action

Prosecution Timeline

Jan 17, 2025
Application Filed
Feb 21, 2026
Non-Final Rejection — §102, §103 (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
82%
Grant Probability
96%
With Interview (+14.2%)
2y 2m
Median Time to Grant
Low
PTA Risk
Based on 1185 resolved cases by this examiner. Grant probability derived from career allow rate.

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