Prosecution Insights
Last updated: April 19, 2026
Application No. 18/838,440

RAIL CONNECTING STRUCTURE

Non-Final OA §102
Filed
Aug 14, 2024
Examiner
LIN, CHENG XI
Art Unit
3615
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Thk Co. Ltd.
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
3y 3m
To Grant
99%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allow Rate
258 granted / 305 resolved
+32.6% vs TC avg
Moderate +14% lift
Without
With
+14.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
26 currently pending
Career history
331
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
55.4%
+15.4% vs TC avg
§102
23.4%
-16.6% vs TC avg
§112
17.2%
-22.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 305 resolved cases

Office Action

§102
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 . DETAILED ACTION This is the first non-final office action on the merits. Claims 1-11 are currently pending. Priority Acknowledgment is made of applicant’s claim for foreign priority under 35 U.S.C. 119 (a)-(d). The certified copy has been filed in parent Application No. JP2022-020928, filed on 02/15/2022. Information Disclosure Statement The information disclosure statement (IDS) submitted on 08/14/2024 has been received and considered by the examiner. Drawings The drawings are accepted. Claim Rejections - 35 USC § 102 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 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1-3 and 6-9 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Hogan et al. (US 20210032039 A1). Regarding claim 1, Hogan teaches (Fig. 9A, 10A-10B and 17-19): A rail connecting structure (joint connector 900) that connects rails (track sections 106) to be mounted on rail mounting members (Fig. 10A and annotated Fig. 18 below), the rail connecting structure (900) comprising a base block (first bracket 928 and second bracket 930) that is placed at a connecting portion of one rail (106) and the other rail (106) and is separate from the rail mounting members (Fig. 10A-10B), wherein the base block (928, 930) is fastened to the one rail and the other rail (106) with fastening members (threaded shaft 410 and springed bolt 806; Fig. 17) that are passed through mounting holes of the one rail and the other rail (para. 0092, liens 9-14; Fig. 12), and the base block (928, 930) is not fixed to the rail mounting members (annotated Fig. 18 below) and is movable relative to the rail mounting members (the blocks 928, 930 are attached only to the rails 106, and are therefore movable relative to the rail mounting members once they are detached from the rails; annotated Fig. 18 below). Regarding claim 2, Hogan further teaches (Fig. 18): there is a gap between the base block (928, 930) and the rail mounting members (annotated Fig. 18 below). Regarding claim 3, Hogan further teaches (Fig. 9A-9C and 14): side surfaces of the rails (106) are pressed against a reference surface of the base block (930) by use of cap screws (806) that are threadedly engaged with the base block (para. 0105; Fig. 14 shows the base block 930 having a springed bolt 806 with a cap). Regarding claim 6, Hogan further teaches (Fig. 10A-10B and 18): the one rail (106) is mounted on one rail mounting member (annotated Fig. 18 below), and the other rail (106) is mounted on the other rail mounting member (annotated Fig. 18 below). Regarding claim 7, Hogan further teaches (Fig. 10A-10B and 18): side surfaces of the rails (106) are pressed against a reference surface of the base block (930) by use of cap screws (806) that are threadedly engaged with the base block (para. 0105; Fig. 14 shows the base block 930 having a springed bolt 806 with a cap). Regarding claim 8, Hogan further teaches (Fig. 10A-10B and 18): the one rail (106) is mounted on one rail mounting member (annotated Fig. 18 below), and the other rail (106) is mounted on the other rail mounting member (annotated Fig. 18 below). Regarding claim 9, Hogan further teaches (Fig. 10A-10B and 18): the one rail (106) is mounted on one rail mounting member (annotated Fig. 18 below), and the other rail (106) is mounted on the other rail mounting member (annotated Fig. 18 below). PNG media_image1.png 465 498 media_image1.png Greyscale Allowable Subject Matter Claims 4-5 and 10-11 are 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 claims. The following is a statement of reasons for the indication of allowable subject matter: Regarding claim 4 and its depending claim(s) 5 and 10-11, the prior art fails to teach that the side surfaces of the rails are pressed against the reference surface of the base block by use of the cap screws and rail retainers placed on side surfaces of the rails opposite to the reference surface. While Hogan further teaches (Fig. 9A-9C and 14): the side surfaces of the rails (106) are pressed against the reference surface of the base block (930) by use of the cap screws (806)(Fig. 14), the examiner finds no obvious reason to modify Hogan to further include rail retainers placed on side surfaces of the rails opposite to the reference surface. Such a modification would require improper hindsight reasoning. It is noted that while the first and second brackets (928, 930) of Hogan may be construed as the rail retainers placed on side surfaces of the rails for retaining the rails, the brackets (928, 930) were already construed as the base block to satisfy the limitation of “the side surfaces of the rails are pressed against the reference surface of the base block by use of the cap screws”. Further, it is improper to alternatively construe the lower ledge (932) of Hogan as the “base block”, since Hogan’s base block 932 is not pressed against the side surfaces of the rails by use of cap screws. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure of a rail connecting structure: US-20120085833-A1, JP-2003283160-A, JP-2012100512-A, JP-5567459-B2, DE-102016107139-B4, EP-3771665-A1. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHENG XI LIN whose telephone number is (571)272-6102. The examiner can normally be reached Mon. through Fri. 9:00am to 6:00pm EST. 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, Samuel (Joe) Morano can be reached at 5712726684. 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. /CHENG LIN/Examiner, Art Unit 3615
Read full office action

Prosecution Timeline

Aug 14, 2024
Application Filed
Feb 04, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600389
METHOD FOR MONITORING A RAILWAY TRACK AND MONITORING SYSTEM FOR MONITORING A RAILWAY TRACK
2y 5m to grant Granted Apr 14, 2026
Patent 12589670
DEVICE AND METHOD FOR INDUCTIVELY TRANSMITTING ELECTRICAL ENERGY TO A WATERCRAFT AND CHARGING SYSTEM
2y 5m to grant Granted Mar 31, 2026
Patent 12583491
RAILWAY DISASTER MONITORING SYSTEM
2y 5m to grant Granted Mar 24, 2026
Patent 12584274
RAIL EXPANSION DEVICE AND METHOD
2y 5m to grant Granted Mar 24, 2026
Patent 12583364
SYSTEM AND METHOD FOR SUPPORTING ELEVATED POWER RAILS
2y 5m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
85%
Grant Probability
99%
With Interview (+14.2%)
3y 3m
Median Time to Grant
Low
PTA Risk
Based on 305 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month