Prosecution Insights
Last updated: July 15, 2026
Application No. 18/881,684

IMPROVED COMPRESSION SEALING GASKET AND SEALING SYSTEM

Final Rejection §102§103
Filed
Jan 06, 2025
Priority
Jul 13, 2022 — EU 22306052.6 +2 more
Examiner
LEE, GILBERT Y
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
GE Infrastructure Technology LLC
OA Round
2 (Final)
79%
Grant Probability
Favorable
3-4
OA Rounds
10m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
1099 granted / 1397 resolved
+26.7% vs TC avg
Moderate +11% lift
Without
With
+10.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
28 currently pending
Career history
1437
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
73.5%
+33.5% vs TC avg
§102
3.5%
-36.5% vs TC avg
§112
3.3%
-36.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1397 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 . The amendment filed 3/16/26 has been entered. 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. Claim(s) 15-16, 21, and 24-27 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Kilbourne, Jr. (RE 24,478). Regarding claim 15, the Kilbourne, Jr. (hereinafter Kilbourne) reference discloses a sealing system comprising two components (not shown), which are capable of being part of a high or medium voltage apparatus containing a gas in which each of the components comprises an end or assembly face that faces the end or assembly face of the other component and wherein a compression sealing gasket (10,20) is compressed between the end or assembly faces of the components, the compression sealing gasket comprising a main body made of an elastomer material (14,24) and comprising a radially outer face and a radially inner face coaxial to each other (Figs. 2,4), wherein at least one of the radially outer face and the radially inner face has a wavy shape (Figs. 2,4), and/or the main body further comprises end faces which connect the inner face and the outer face, at least one of the end faces having a wavy shape (Figs. 2,4), wherein at least one of the radially outer face and the radially inner face comprises at least one first thin layer (13), made of metal or soft metal or PTFE (Col. 3, Lines 51-69), and having a thickness of between 1 nm and 1 mm (Example III). Regarding claim 16, the Kilbourne reference discloses the first thin layer at least partially covers at least one of the radially outer face and the radially inner face (Figs. 2,4). Regarding claim 21, the Kilbourne reference discloses the radially outer face and the radially inner face are parallel and/or coaxial to each other (Figs. 4). Regarding claim 24, the Kilbourne reference discloses the components are at least partly cylindrical, arranged coaxially to each other and to a main axis, the end or assembly face of each component extending in a plane perpendicular to the main axis (e.g. Example IV). Regarding claim 25, the Kilbourne reference discloses at least one of the end or assembly faces comprises an annular recess in which the compression sealing gasket is fitted (Example V). Regarding claim 26, the Kilbourne reference discloses the gasket is axially compressed by the end or assembly faces (Example IV). Regarding claim 27, the Kilbourne reference discloses a method for insulating a gas insulated portion of a high or medium voltage apparatus, the gas insulated portion: containing a gas, for example heptafluoroisobutyronitrile or heptafluoroisopropyl trifluoromethyl ketone (also named 2-butanone, 1,1,1,3,4,4,4-heptafluoro-3-(trifluoromethyl)- (CAS No 756-12-7)), possibly mixed with a dilution gas comprising CO2 and/or 02 and/or N2 and/or an oxygenated compound, or the portion containing a gas comprising at least CO2 and/or 02 and/or N2 and/or an oxygenated compound and/or water vapor, and/or the gas insulated portion being surrounded, or being intended to be surrounded by an atmosphere containing some water and/or water vapor (e.g. Examples), the apparatus and/or the gas portion comprising a sealing system according to claim 15 (Figs. 2,4), or comprising two components, in which each of the components comprises an end or assembly face that faces the end or assembly face of the other component and wherein a compression sealing gasket according to claim 15 is arranged and is compressed between the end or assembly faces of the components (e.g. Examples). 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) 17-19 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kilbourne in view of Guizzetti et al. (US Pub. No. 2004/0157035). Regarding claim 17, the Kilbourne reference discloses the invention substantially as claimed in claim 15. However, the Kilbourne reference fails to explicitly disclose the main body further comprises end faces which connect the inner face and the outer face, at least one of the end faces comprising a second thin layer of metal or soft metal or PTFE. The Guizzetti et al. (hereinafter Guizzetti) reference, a seal, discloses separating the thin layer (Figs. 3,4). It would have been obvious to one of ordinary skill in the art at the time of filing to split the thin layer in the Kilbourne reference in view of the teachings of the Guizzetti in order to reduce manufacturing costs. Regarding claim 18, the Kilbourne reference discloses the invention substantially as claimed in claim 15. However, the Kilbourne reference fails to explicitly disclose a first layer and a second thin layer as claimed. The Guizzetti et al. (hereinafter Guizzetti) reference, a seal, discloses separating the thin layer (Figs. 3,4). It would have been obvious to one of ordinary skill in the art at the time of filing to split the thin layer in the Kilbourne reference in view of the teachings of the Guizzetti in order to reduce manufacturing costs. Regarding claim 19, the Kilbourne reference, as modified in claim 17, discloses the second thin layer has a thickness of between 1 nm and 1 µm (Example III). Claim(s) 20 and 28 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kilbourne. Regarding claim 20, the Kilbourne reference discloses the invention substantially as claimed in claim 15. However, the Kilbourne reference fails to explicitly disclose the first thin layer and/or the second thin layer is made of a metal or a soft metal, selected from among Ag, A1203, tin, Copper, Gold, Iron, or a mixture of these elements and/or any oxide of these elements. It would have been obvious to one having ordinary skill in the art at the time the invention was filed to use the claimed material, 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 use as a matter of obvious mechanical expedience and in order to provide optimal sealing pressure. In re Leshin, 125 USPQ 416. Regarding claim 28, the Kilbourne reference discloses the invention substantially as claimed in claim 27. However, the Kilbourne reference fails to explicitly disclose the gas is contained in the apparatus at a pressure between 1 bar and 20 bars. It would have been obvious to one of ordinary skill in the art at the time of filing to use the claimed, 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.. Claim(s) 23 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kilbourne in view of Zong et al. (US Patent No. 11,808,357). Regarding claim 23, the Kilbourne reference discloses the invention substantially as claimed in claim 15, including the first thin layer having a thickness of between 1 nm and 1 mm (Example III), for example a thin layer made of, or comprising, metal or soft metal or PTFE. However, the Kilbourne reference fails to explicitly disclose a protecting layer the first thin layer is made of, or comprises, metal or soft metal. The Zong et al. (hereinafter Zong), a gasket, disclose a protecting layer (306). It would have been obvious to one of ordinary skill in the art at the time of filing to provide a protecting layer to the Kilbourne reference in view of the teachings of the Zong reference in order to allow for better protection. It would have been obvious to one having ordinary skill in the art at the time the invention was filed to use the claimed material, 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 use as a matter of obvious mechanical expedience and in order to provide optimal sealing pressure. In re Leshin, 125 USPQ 416. Response to Arguments Applicant’s arguments with respect to claim(s) 15-21 and 23-28 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 GILBERT Y LEE whose telephone number is (571)272-5894. The examiner can normally be reached Monday-Friday 8am-430pm. 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, Christine Mills can be reached at (571)272-8322. 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. /GILBERT Y LEE/Primary Examiner, Art Unit 3675
Read full office action

Prosecution Timeline

Jan 06, 2025
Application Filed
Dec 16, 2025
Non-Final Rejection mailed — §102, §103
Mar 13, 2026
Response Filed
Jun 03, 2026
Final Rejection mailed — §102, §103
Jul 09, 2026
Response after Non-Final Action

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

3-4
Expected OA Rounds
79%
Grant Probability
89%
With Interview (+10.6%)
2y 4m (~10m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1397 resolved cases by this examiner. Grant probability derived from career allowance rate.

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