Prosecution Insights
Last updated: April 19, 2026
Application No. 18/598,816

RETROFITTABLE TRACK LINK FOR ENDLESS CRAWLER TRACKS OF WORK MACHINES

Non-Final OA §102
Filed
Mar 07, 2024
Examiner
LEE, TYLER J
Art Unit
3663
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Caterpillar Inc.
OA Round
1 (Non-Final)
92%
Grant Probability
Favorable
1-2
OA Rounds
2y 1m
To Grant
99%
With Interview

Examiner Intelligence

Grants 92% — above average
92%
Career Allow Rate
863 granted / 938 resolved
+40.0% vs TC avg
Moderate +7% lift
Without
With
+6.8%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
25 currently pending
Career history
963
Total Applications
across all art units

Statute-Specific Performance

§101
10.2%
-29.8% vs TC avg
§103
38.6%
-1.4% vs TC avg
§102
30.0%
-10.0% vs TC avg
§112
16.4%
-23.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 938 resolved cases

Office Action

§102
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 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. Claim(s) 1 and 7 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Clarke et al. (Pub. No.: US 2011/0316331 A1). Regarding claim 1, Clarke discloses a retrofittable track link (retrofitting an existing chain of a track driven machine ¶ 8) for an endless crawler track (34, FIG. 1), the retrofittable track link comprising: a body defining a first side and a second side opposite to the first side (42, 43; FIG. 3), a leading strap end (First half link 42, FIG. 4), a trailing strap end (Second half link 44, FIG. 4 ¶ 54), and an intermediate portion extending therebetween, the intermediate portion defining a linear profile (Third ramp 71, FIG. 4), a first surface at the leading strap end and a second surface at the trailing strap end, wherein the first surface being disposed at the first side and the second surface being disposed at the second side (First and second half link connecting at 71 FIG. 4), the first surface and the second surface being tapered with respect to the linear profile to be indented into the body (ramp 71, FIG. 1), the first surface is configured to be mated with a trailing strap end of a succeeding track link of the endless crawler track at a first overlapping portion of the retrofittable track link with the succeeding track link (coupling first half link and second half links see claim 19), and the second surface is configured to be mated with a leading strap end of a preceding track link of the endless crawler track at a second overlapping portion of the retrofittable track link with the preceding track link (See claim 19 and FIG. 4). Regarding claim 7, Clarke discloses a method of manufacturing a retrofittable track link for an endless crawler track, the method comprising: providing a body defining a first side (First half link 42, FIG. 4), and a second side opposite to the first side (Second half link 44, FIG. 4 ¶ 54); machining the first side to define a first surface indented into the body to form a leading strap end of the body (Third ramp 71, FIG. 4); and machining the second side to define a second surface indented into the body to form a trailing strap end of the body and an intermediate portion extending between the leading strap end and the trailing strap end, wherein the intermediate portion defines a linear profile (First and second half link connecting at 71 FIG. 4), the first side being machined at a first angle with respect to the linear profile to define the first surface and the second side being machined at a second angle with respect to the linear profile to define the second surface (first and second rail defining an angle from 45 to 53 degrees ¶ 8), the first surface is configured to be mated with a trailing strap end of a succeeding track link of the endless crawler track at a first overlapping portion of the retrofittable track link with the succeeding track link (coupling first half link and second half links see claim 19), and the second surface is configured to be mated with a leading strap end of a preceding track link of the endless crawler track at a second overlapping portion of the retrofittable track link with the preceding track link (See claim 19 and FIG. 4). Allowable Subject Matter Claim 2 – 6 and 8 – 10 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 claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TYLER J LEE whose telephone number is (571)272-9727. The examiner can normally be reached M-F 7:30-5:00. 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, Abby Flynn can be reached at 571-272-9855. 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. /TYLER J LEE/Primary Examiner, Art Unit 3663
Read full office action

Prosecution Timeline

Mar 07, 2024
Application Filed
Feb 11, 2026
Non-Final Rejection — §102 (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
92%
Grant Probability
99%
With Interview (+6.8%)
2y 1m
Median Time to Grant
Low
PTA Risk
Based on 938 resolved cases by this examiner. Grant probability derived from career allow rate.

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