Prosecution Insights
Last updated: July 17, 2026
Application No. 18/579,709

DEVICE FOR PRODUCING OIL SUPPLY PIPE AND METHOD FOR PRODUCING OIL SUPPLY PIPE

Final Rejection §103§112
Filed
Jan 16, 2024
Priority
Jul 27, 2021 — JP 2021-122632 +1 more
Examiner
TOLAN, EDWARD THOMAS
Art Unit
3725
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Nippon Steel Stainless Steel Corporation
OA Round
2 (Final)
78%
Grant Probability
Favorable
3-4
OA Rounds
3m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allowance Rate
1048 granted / 1343 resolved
+8.0% vs TC avg
Strong +16% interview lift
Without
With
+16.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
34 currently pending
Career history
1388
Total Applications
across all art units

Statute-Specific Performance

§103
88.5%
+48.5% vs TC avg
§102
7.1%
-32.9% vs TC avg
§112
2.6%
-37.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1343 resolved cases

Office Action

§103 §112
DETAILED ACTION Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 3 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 3 recites the limitation "the first ridge portions" in line 2. There is insufficient antecedent basis for this limitation in the claim. Claim 1, lines 6 and 7 set forth “one first ridge portion” Claim Rejections - 35 USC § 103 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. Claim(s) 1-3 is/are rejected under 35 U.S.C. 103 as being unpatentable over by Hanafusa et al. (8,037,734) in view of Von Till et al. (2,243,138). Hanafusa discloses a method and apparatus for forming a thread (203a,203b,203c; Fig. 21) on a pipe end (202) of a pipe (201; Fig. 13) which is constructed to convey fluid. Hanafusa discloses that a first roller (212) with a first circumferential surface is located on an outer circumferential surface side of the pipe (201) and a second roller (211) with a second circumferential surface is located on an inner circumferential surface side of the pipe (201; Fig. 13). The first roller (212) and the second roller (211) are rotated on parallel rotating shafts (Fig. 12) to roll form the pipe. The first roller (212) and the second roller (211) have a spiral threadform (221; col. 18, lines 30-35) constructed on the first and second circumferential surfaces and as illustrated in Fig. 14, one first spiral ridge (221A) is a ridge consisting of less than one turn to function as a starter thread (col. 19, lines 37-43). Hanafusa discloses that the second circumferential surface of the second roller (211) includes a plurality of ridge portions (221A,221B,221C; Figs. 14 and 15) including a ridge (221B) portion that is spirally provided (col. 19, lines 23-25). Regarding claim 3, Hanafusa discloses a plurality of first ridge portions (221A,221B,221C). Hanafusa does not explicitly recite that a total length of the first spiral ridge is less than one turn. Von Till teaches (Fig. 10) that a first forming roller (30) has a spiral ridge (2) for forming a thread wherein a total length of the spiral ridge extends slightly more than one-half a circumference of the outer roller (page 4, col. 2, lines 40-43). It would have been obvious to the skilled artisan prior to the effective filing date of the present invention to configure the starting or ending turn of the spiral ridge of Hanafusa to only be structured around a circumference of the first roller less than a full thread turn as taught by Von Till so that the outer roller has a smooth portion that will not interfere with the completed partial thread turn as the rollers separate from each other after thread forming. Response to Arguments Applicant's arguments filed 4-15-2026 have been fully considered but they are not persuasive. Applicant argues that it is not possible to tell whether the partial thread turns of the starting and ending threads are less than one turn around a circumference of the first roller (response, 4-15-2026; page 2, paragraph 3) and Von Till has been used to respond to Applicant’s amendment that a total length of the first ridge portion in a circumferential direction on the first roller circumference is less than one turn. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Hopkins (2,632,345) teaches a plurality of separate threads (40,44; Figs. 3 and 4) which extend less than a full turn around a circumference of rollers (28,30). Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 EDWARD THOMAS TOLAN whose telephone number is (571)272-4525. The examiner can normally be reached M-F 7:30-5. 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, Chris Templeton can be reached at 571-270-1477. 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. /EDWARD T TOLAN/Primary Examiner, Art Unit 3725
Read full office action

Prosecution Timeline

Jan 16, 2024
Application Filed
Dec 10, 2025
Non-Final Rejection (signed) — §103, §112
Jan 16, 2026
Non-Final Rejection mailed — §103, §112
Apr 15, 2026
Response Filed
Jun 09, 2026
Final Rejection mailed — §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12678852
METHOD FOR MANUFACTURING A METAL PACKAGING IN THE FORM OF A BOTTLE
3y 1m to grant Granted Jul 14, 2026
Patent 12678848
HYDRAULIC CONDUIT BENDER
2y 12m to grant Granted Jul 14, 2026
Patent 12678850
MOLDING DEVICE
2y 6m to grant Granted Jul 14, 2026
Patent 12667879
DETERMINATION METHOD FOR DETERMINATION OF THE ROLLING OR GUIDING GAPS OF THE ROLL STANDS OR GUIDE STANDS IN A MULTI-STAND ROLLING MILL
3y 0m to grant Granted Jun 30, 2026
Patent 12667874
ROLLING MILL WITH MOVABLE HOUSING AND SEALED DOOR
2y 4m to grant Granted Jun 30, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
78%
Grant Probability
94%
With Interview (+16.1%)
2y 9m (~3m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1343 resolved cases by this examiner. Grant probability derived from career allowance 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