Prosecution Insights
Last updated: April 19, 2026
Application No. 18/225,839

Rail Vehicle Car Body Wall Structure

Non-Final OA §102
Filed
Jul 25, 2023
Examiner
MCCARRY JR, ROBERT J
Art Unit
3615
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Hitachi, Ltd.
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
98%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allow Rate
1236 granted / 1508 resolved
+30.0% vs TC avg
Strong +16% interview lift
Without
With
+16.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
42 currently pending
Career history
1550
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
34.3%
-5.7% vs TC avg
§102
43.0%
+3.0% vs TC avg
§112
14.3%
-25.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1508 resolved cases

Office Action

§102
DETAILED ACTION The Information Disclosure Statements filed on July 25, 2023 and November 13, 2024 have both been reviewed and considered by the Examiner. 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) 15-28 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Umebayashi et al (US 2012/0042805). Umebayashi et al discloses a wall structure for forming a wall of a rail vehicle car body, shown generally in figure 1, the wall structure is comprised of a metal panel 2 having a window aperture 2c, 2d formed therein a fibre-reinforced-plastic (FRP) strengthening system 7a-7d attached to the metal panel at a corner of the aperture, as shown in figure 4, wherein the FRP strengthening system comprises a stack of FRP laminae arranged such that, progressing through the stack starting from a base lamina, the area of each lamina in the stack is less than that of the previous lamina, as shown in figure 9. The wall structure further forms a double skinned wall of a rail vehicle car body, as shown in figure 3, where the wall structure has spaced exterior and interior metal panels 4, the base lamina is attached to a side of the interior metal panel that faces into the car body and another lamina in the stack is attached to the interior metal panel on the opposite side thereof to the base lamina. The edge of the FRP strengthening system closest to the corner of the aperture is offset from the periphery 2f, shown in figure 4, to leave a margin of metal panel at the corner of the aperture which is uncovered by the FRP strengthening system. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Robert J McCarry Jr. whose telephone number is (571)272-6683. The examiner can normally be reached Monday-Friday 7:00-3:00. 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, S. Joseph Morano can be reached at 571-272-6684. 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. /Robert J McCarry Jr/Primary Examiner, Art Unit 3615 RJM January 22, 2026
Read full office action

Prosecution Timeline

Jul 25, 2023
Application Filed
Jan 22, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12595628
TRACK RAIL FASTENER STRUCTURED FOR DISPLACEMENT RESTRAINT
2y 5m to grant Granted Apr 07, 2026
Patent 12594972
RAILWAY VEHICLE
2y 5m to grant Granted Apr 07, 2026
Patent 12590421
GAPLESS RAILWAY DIAMOND: A NEW TYPE OF RAILWAY TRACK COMPONENT PROVIDING UNBROKEN RUNNING SURFACES ACROSS THE FLANGEWAYS OF AN INTERSECTING RAILWAY LINE
2y 5m to grant Granted Mar 31, 2026
Patent 12589657
WHEEL-TRACK MAGNETIC SUSPENSION VEHICLE SYSTEM AND APPLICATION THEREOF
2y 5m to grant Granted Mar 31, 2026
Patent 12583490
YOKE ASSEMBLY FOR A COUPLER SYSTEM
2y 5m 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

1-2
Expected OA Rounds
82%
Grant Probability
98%
With Interview (+16.5%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 1508 resolved cases by this examiner. Grant probability derived from career allow rate.

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