Prosecution Insights
Last updated: August 17, 2026
Application No. 19/215,695

DOWNHOLE TOOL INCLUDING RELATED LUG SLOTS AND LUGS FOR COUPLING A MILLING TOOL AND WHIPSTOCK ASSEMBLY

Final Rejection §102
Filed
May 22, 2025
Priority
Jun 12, 2023 — continuation of 12/331,607
Examiner
THOMPSON, KENNETH L
Art Unit
3676
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Halliburton Energy Services Inc.
OA Round
2 (Final)
87%
Grant Probability
Favorable
3-4
OA Rounds
1y 2m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
1029 granted / 1177 resolved
+35.4% vs TC avg
Moderate +7% lift
Without
With
+7.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
29 currently pending
Career history
1193
Total Applications
across all art units

Statute-Specific Performance

§101
2.2%
-37.8% vs TC avg
§103
29.0%
-11.0% vs TC avg
§102
52.5%
+12.5% vs TC avg
§112
11.5%
-28.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1177 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 . Terminal Disclaimer The terminal disclaimer filed on 28 May 2026 disclaiming the terminal portion of any patent granted on this application which would extend beyond the expiration date of U.S. 12,331,607 has been reviewed and is accepted. The terminal disclaimer has been recorded. 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. Claims 1, 2 and 7 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Schnitker et al., U.S. 6,032,740. Schnitker et al. discloses a whipstock assembly (col. 1, field of invention) having a whipstock body (fig 7b, 80; col. 4, lines 40-43) having an uphole end and a downhole end, the whipstock body defining a taper face; and a lug (fig 7a, top hook portion 81) coupled proximate the uphole end of the whipstock body, the lug configured to engage with a lug slot (fig 7a, hook recess 74) of a related milling tool (mill 60; col. 4, lines 40-43) to couple the whipstock assembly with the related milling tool when the milling tool rotates in a first direction and to disengage from the lug slot of the related milling tool to release the whipstock assembly from the related milling tool when the milling tool rotates in a second opposite direction (the lug in slot bayonet configuration operates by way of opposing rotation of connected members). Schnitker et al. discloses the lug (81) has a smaller lug portion (the longitudinal portion of 81 at the whipstock 80 appears to be radially smaller than the horizontal portion in the slot 74) and a larger lug portion (the radial portion of 81 at 74, 60a, fig 7a), the smaller lug portion more proximate the whipstock body (80) than the larger lug portion. Schnitker et al. discloses the lug (81) is operationally, integrally formed or functionally attached with whipstock body. Allowable Subject Matter Claims 3-6 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. Response to Arguments Applicant's arguments filed 28 May 2026 have been fully considered but they are not persuasive. Applicants argue the prior art does not disclose the lug slot is located in one of the plurality of blades, and the lug slot extends from a side surface that is exposed by the spacing between adjacent blades of claim 1. The claim does not recite the limitations, notwithstanding the unnecessary use of the numeral “1” in the non-final rejection, dependent claim 6 introduces the blades. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KENNETH L THOMPSON whose telephone number is (571)272-7037. The examiner can normally be reached Weekdays; 9:00-5:00, 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, Tara Schimpf can be reached at 571-270-7741. 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. 9 June 2026 /KENNETH L THOMPSON/ Primary Examiner, Art Unit 3676
Read full office action

Prosecution Timeline

May 22, 2025
Application Filed
Feb 03, 2026
Non-Final Rejection mailed — §102
May 28, 2026
Response Filed
Jun 11, 2026
Final Rejection mailed — §102 (current)

Precedent Cases

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Patent 12662910
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
87%
Grant Probability
94%
With Interview (+7.1%)
2y 5m (~1y 2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1177 resolved cases by this examiner. Grant probability derived from career allowance rate.

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