Prosecution Insights
Last updated: October 27, 2026
Application No. 18/242,620

Sealing Ring and Connector Assembly

Final Rejection §103
Filed
Sep 06, 2023
Priority
Sep 13, 2022 — CN 2022111121057
Examiner
BYRD, EUGENE G
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Illinois Tool Works Inc.
OA Round
5 (Final)
70%
Grant Probability
Favorable
6-7
OA Rounds
0m
Est. Remaining
79%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allowance Rate
609 granted / 869 resolved
+18.1% vs TC avg
Moderate +9% lift
Without
With
+8.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
27 currently pending
Career history
908
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
62.2%
+22.2% vs TC avg
§102
21.6%
-18.4% vs TC avg
§112
13.9%
-26.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 869 resolved cases

Office Action

§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 § 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) 1-18 is/are rejected under 35 U.S.C. 103 as being unpatentable over Conover (US 4387902). Regarding claim 1, Conover discloses a sealing ring 10 Fig. 1, comprising an annular base 11 comprising an inner annular side and an outer annular side; an arc-shaped inside sealing portion 16 protruding inwardly from the inner annular side wherein the inside sealing portion has a contour undulating in an axial direction of the annular base or inclined with respect to a radial direction of the annular base. However, Fig. 1 of Conover fails to explicitly disclose an outside sealing portion protruding outwardly from an outer annular side. Fig. 7 of Conover shows this to be well known in the art. Fig. 7 of Conover discloses the use of an arc-shaped outside sealing portion 16’ protruding outwardly from an outer annular side 20 wherein the outside sealing portion has a contour undulating in an axial direction of the annular base or inclined with respect to a radial direction of the annular base. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of claimed invention to provide the outer side of Conover Fig. 1 with a sealing portion as taught by Conover Fig. 7 with a reasonable expectation for success providing sealing on either surface. Regarding claims 2 and 14, the combination discloses wherein the undulating contour 16 forms a wavy contour. Regarding claim 3, the combination discloses wherein the inclined contour 16 comprises one highest point and one lowest point. Regarding claim 4, the combination discloses wherein the undulating contour 16 comprises at least two highest points and at least two lowest points, wherein the at least two highest points are arranged rotationally symmetrically with respect to an axis of the annular base, and the at least two lowest points are arranged rotationally symmetrically with respect to the axis of the annular base Fig. 1. Regarding claim 5, the combination discloses wherein each of the inside sealing portion 16 and the outside sealing portion 16’ has the contour undulating in the axial direction of the annular base 11 or inclined with respect to the radial direction of the annular base. Regarding claim 6, the combination discloses wherein the contour of the inside sealing portion 16 and the contour of the outside sealing portion 16’ undulate or are inclined synchronously with respect to the annular base 11. Regarding claim 7, the combination discloses wherein the contour of the inside sealing portion 16 and the contour of the outside sealing portion 16’ undulate or are inclined asynchronously with respect to the annular base. Regarding claim 8, the combination discloses wherein the inside sealing portion 16 and the outside sealing portion 16’ each have a sealing surface with arc-shaped cross-sections. Regarding claim 9, the combination discloses wherein: the annular base 11 comprises a first end and a second end in the axial direction; and the contour 16’ Fig. 7 comprises a first portion which is closer to the first end and a second portion which is closer to the second end, and the contour is configured such that during deformation of the contour being pressed by a component in dynamic contact therewith, the first portion of the contour is pressed and deformed by the component before the second portion, and when the first portion of the contour is pressed and deformed by the component, the second portion of the contour has not been in contact with the component or is not pressed and deformed by the component. Regarding claim 10, the combination discloses wherein: the annular base 11, the inside sealing portion 16 and the outside sealing portion 16’ are integrally formed. Regarding claim 11, the combination discloses a connector assembly Fig. 7, comprising: a female connector 23; a male connector 22 inserted into the female connector; and a sealing ring 20, wherein the sealing ring is arranged between an outer side of the male connector and an inner side of the female connector to achieve a sealing between the outer side of the male connector and the inner side of the female connector. Regarding claim 12, the combination discloses wherein: the outer side of the male connector 22 Fig. 7 is provided with a male connector accommodation groove 21 in which the sealing ring 20 is at least partially retained; or the inner side of the female connector Fig. 6 is provided with a female connector accommodation groove 12 in which the sealing ring 10 is at least partially retained. Regarding claim 13, the combination discloses a sealing ring 10 Fig. 1, comprising: an annular base 11 comprising an inner annular side and an outer annular side; an inside sealing portion 16 protruding inwardly from the inner annular side; and an outside sealing portion 16’ Fig. 7 protruding outwardly from the outer annular side, wherein each of the inside sealing portion and the outside sealing portion have an undulating contour that follows an identical direction with each other. However, the combination fails to explicitly disclose the cross section of the sealing ring having a circular cross-section configuration. 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 that the configuration of the claimed element was a matter of choice which a person of ordinary skill in the art would have found obvious absent persuasive evidence that the particular configuration of the claimed element was significant. In re Dailey, 357 F.2d 669, 149 USPQ 47 (CCPA 1966) Regarding claims 15 and 19, the combination as modified discloses the circular cross section comprises at least two highest points and at least two lowest points, but fails to explicitly disclose wherein the at least two highest points are arranged rotationally symmetrically with respect to an axis of the annular base, and the at least two lowest points are arranged rotationally symmetrically with respect to the axis of the annular base. Nevertheless, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention in order to control sealing and since it has been held that rearranging parts of an invention involves only routine skill in the art. In re Japiske, 181 F.2d 1019, 86 USPQ 70 (CCPA 1950). Regarding claim 16, the combination discloses wherein: the inside sealing portion 16 Fig. 1 and the outside sealing portion 16’ Fig. 7 each have a sealing surface with an arc-shaped cross-section and the annular base has a rectangular cross-section. Regarding claim 18, the combination discloses wherein: the annular base 11, the inside sealing portion 16 and the outside sealing portion 16’ are integrally formed. Regarding claim 20, the combination discloses a connector assembly, comprising: a female connector 23; a male connector 22 inserted into the female connector; and a sealing ring 20, wherein the sealing ring is arranged between an outer side of the male connector and an inner side of the female connector to achieve a sealing between the outer side of the male connector and the inner side of the female connector. Regarding claim 21, the combination wherein: the outer side of the male connector 22 is provided with a male connector accommodation groove 21 Fig. 7 in which the sealing ring is at least partially retained; or the inner side of the female connector is provided with a female connector accommodation groove 12 Fig. 6 in which the sealing ring is at least partially retained. Response to Arguments Applicant's arguments filed 8/14/26 have been fully considered but they are not persuasive. Applicant continues to argue that the Conover reference does disclose a seal (already being provided), alleging that "interference and resiliently stressed extensive sidewall and groove-bottom support," are words used to describe a sealing connection. The Examiner disagrees, the Conover reference discloses the size selected is to assure uniform stabilized support by and between the spaced sidewalls of a retaining groove and not creating a seal. Applicant further argues alleging that the proposed modification actually appears to make a poorer seal. This is not persuasive, since the seal of Conover is constructed to substantially reduce wear, as compared with the indicated types of seals which the inventive seal is particularly adapted to replace. And there is absolutely no tendency of the seal to develop the torsional twist which characterizes prior constructions, thus providing the sealing protrusion on either or both side would not destroy the sealing. Applicant further argues that the Conover reference fails to disclose that the inside sealing portion and the outside sealing portion each have a sealing surface with an arc-shaped cross-section. The Examiner disagrees. The Conover reference does in fact disclose an arc-shaped cross section (at 16) as clearly illustrated in Fig. 3 below. PNG media_image1.png 458 738 media_image1.png Greyscale Applicant further argues that configuration of the portions of the inside sealing portion, the annular base, and the outside sealing portion together form a circular cross-section is not disclose by the Conover reference. As discussed above, it has been held that the configuration of the claimed element was a matter of choice which a person of ordinary skill in the art would have found obvious absent persuasive evidence that the particular configuration of the claimed element was significant. 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 on 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

Show 5 earlier events
Jul 24, 2025
Non-Final Rejection mailed — §103
Oct 17, 2025
Response Filed
Jan 02, 2026
Final Rejection mailed — §103
Apr 02, 2026
Request for Continued Examination
Apr 17, 2026
Response after Non-Final Action
May 19, 2026
Non-Final Rejection mailed — §103
Aug 14, 2026
Response Filed
Sep 29, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12760839
HIGH TEMPERATURE SEALING SYSTEM FOR AN AXIALLY EXPANDING VOLUME
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GASKET
1y 10m to grant Granted Sep 29, 2026
Patent 12747582
JOINT-SEALING STRIP
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Patent 12736135
SEALING SYSTEM FOR A ROTARY SHAFT WITH RADIALLY DIRECTED SEALING FORCES
1y 11m to grant Granted Sep 15, 2026
Patent 12733634
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1y 10m to grant Granted Sep 15, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

6-7
Expected OA Rounds
70%
Grant Probability
79%
With Interview (+8.9%)
2y 9m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 869 resolved cases by this examiner. Grant probability derived from career allowance rate.

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