Prosecution Insights
Last updated: August 15, 2026
Application No. 19/068,187

Metallic Dynamic Seal

Final Rejection §102§103
Filed
Mar 03, 2025
Priority
Mar 06, 2024 — BR 102024004480-0
Examiner
BYRD, EUGENE G
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Batfer Investment S A
OA Round
2 (Final)
70%
Grant Probability
Favorable
3-4
OA Rounds
1y 4m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allowance Rate
597 granted / 855 resolved
+17.8% vs TC avg
Moderate +10% lift
Without
With
+9.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
32 currently pending
Career history
885
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
62.3%
+22.3% vs TC avg
§102
21.5%
-18.5% vs TC avg
§112
13.9%
-26.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 855 resolved cases

Office Action

§102 §103
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, 4-7 and 11 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Smith et al. (US 2020/0332621). Regarding claim 1, Smith et al. discloses a metallic dynamic seal 152 Fig. 1, comprising: an annular main body comprising an axial axis, an external peripheral surface (152a of Annotated Fig. 1, below) and an internal peripheral surface (152b of Annotated Fig. 1, below), said internal peripheral surface comprising at least two convex contact surfaces (152c) configured to define a metal-to-metal sealing region, said external peripheral surface comprising at least two concave surfaces (152d of Annotated Fig. 1, below) corresponding to respective ones of said convex contact surfaces, and wherein the external surface comprises a flange (152e of Annotated Fig. 1, below) projecting radially outward from the axial axis of said annular main body 100. PNG media_image1.png 618 824 media_image1.png Greyscale Regarding claim 4, Smith et al. discloses said two concave surfaces 152d extend around the entire perimeter of the external peripheral surface 152a. Regarding claims 5 and 6, Smith et al. discloses two convex contact surfaces 152c are parallel to each other. Regarding claim 7, Smith et al. discloses said two convex contact surfaces 152c are separated by an intermediate surface (152f of Annotated Fig. 1, above). Regarding claim 11, Smith et al. discloses that the convex contact surfaces 152c and the intermediate surface 152f form a sealing test chamber. Claim Rejections - 35 USC § 103 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 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) 8 and 9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Smith et al. Regarding claim 8, Smith et al. discloses the invention as claimed above but fails to explicitly disclose a thickness of the convex contact surfaces ranging from 0.1 to 0.35 inches. Nevertheless, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the thickness of the convex contact surfaces to any number of ranges (i.e. 0.1 to 0.35 inches) disclosed by Applicant, since it has been held that where the general conditions of a claim are disclosed in the prior art, discovering the optimum or workable ranges involves only routine skill in the art. In re Aller, 105 USPQ 233. Regarding claim 9, Smith et al. discloses the invention as claimed above but fails to explicitly disclose a that the convex contact surfaces are made of a chromium-nickel alloy. Nevertheless, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention since it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended used as a matter of obvious design choice. Sinclair & Carroll Co. v. Interchemical Corp., 325 U.S. 327, 65 USPQ 297 (1945) Claim(s) 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Smith et al. in view of Paton (US 2024/0209943). Regarding claim 10, Smith et al. discloses the invention as claimed above but fails to explicitly disclose that the contact surfaces are coated with silver. Paton shows this to be well known in the art. Paton, a metallic dynamic seal 1 Fig. 1, discloses the use of contact surfaces coated with silver (Para. 0011). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide the surfaces of Smith et al. with a silver coating as taught by Paton in order to prevent seizing (Para. 0053 of Paton). Allowable Subject Matter Claim 3 is 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. The following is a statement of reasons for the indication of allowable subject matter: In view of a review of the prior art by the Examiner; the prior art of record neither teaches nor suggests all of the claimed subject matter of claim 3 including where the flange has an inclined face that is connected to one of the concave surfaces of the external peripheral surface by means of an intermediate surface. There is no motivation to modify the prior art references, absent the applicant’s own disclosure, in the manner required by the claims. Response to Arguments Applicant’s arguments with respect to claim(s) 1-11 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion 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 EUGENE G BYRD whose telephone number is (571)270-1824. The examiner can normally be reached Monday-Friday 9am-5:30pm. 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, Kristina Fulton can be reached at 5712727376. 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. /EUGENE G BYRD/Primary Examiner, Art Unit 3675
Read full office action

Prosecution Timeline

Mar 03, 2025
Application Filed
Feb 24, 2026
Non-Final Rejection mailed — §102, §103
Jun 24, 2026
Response Filed
Aug 07, 2026
Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12704177
COATING FOR A PISTON RING
2y 4m to grant Granted Aug 11, 2026
Patent 12704180
SHAFT SEALING RING AND SHAFT ARRANGEMENT FOR HIGH ROTATIONAL SPEEDS
1y 9m to grant Granted Aug 11, 2026
Patent 12704119
SEALING ASSEMBLY WITH REPOSITIONABLE SEAL
1y 6m to grant Granted Aug 11, 2026
Patent 12698830
GASKET AND SEALING STRUCTURE
1y 11m to grant Granted Aug 04, 2026
Patent 12687195
SLIDING PARTS
2y 5m to grant Granted Jul 21, 2026
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
70%
Grant Probability
80%
With Interview (+9.7%)
2y 9m (~1y 4m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 855 resolved cases by this examiner. Grant probability derived from career allowance rate.

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