Prosecution Insights
Last updated: October 02, 2026
Application No. 18/638,170

TOOLLESS COMPRESSION MECHANISMS

Non-Final OA §103
Filed
Apr 17, 2024
Priority
Apr 18, 2023 — provisional 63/460,214
Examiner
OMGBA, ESSAMA
Art Unit
Tech Center
Assignee
Corning Incorporated
OA Round
1 (Non-Final)
59%
Grant Probability
Moderate
1-2
OA Rounds
1y 0m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
481 granted / 812 resolved
-0.8% vs TC avg
Strong +33% interview lift
Without
With
+32.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
17 currently pending
Career history
830
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
60.6%
+20.6% vs TC avg
§102
18.1%
-21.9% vs TC avg
§112
18.1%
-21.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 812 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 Objections Claims 1-20 are objected to because of the following informalities: In claims 1 and 11, ln line 7 of each claim, “upper compression element” should read --the upper compression element--; and in line 8 of each claim, “mates” should read --mate--. Appropriate correction is required. 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) 1-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Stone (US 2011/0031740) in view of Lind et al. (US 2016/0131294). With regard to claim 1, Stone discloses a toolless compression mechanism (fig. 2) comprising an upper compression element 20/22 having a hub (cylindrical portion of 22), a base 20 having a locator element 42 positioned on an underside surface of the base and a hub extension having inner threads disposed therein (as can be seen in figure 2, threads in 22), an intermediate compression element 16 having an upper intermediate compression surface having a channel 38 that upon assembly of the toolless compression mechanism mates with the upper compression element, a lower compression segment having an extension with threads that mate with the inner threads of the upper compression element, and a sealing element 14 positioned between the intermediate compression element and the lower compression segment, wherein when turned, the upper compression element is displaced along the extension such that the sealing element is compressed Figs 4A and 4B).Stone does not disclose a plurality of wings surrounding the hub of the upper compression element, however, Lind et al. teaches providing ribs/wings 56 to a similar upper compression elements of a compression mechanism for reinforcement, see paragraph [0037] and figures 6 and 7. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, to have provided ribs/wings to the hub of the upper compression element of Stone, in light of the teachings of Lind et al. as reinforcement for the upper compression element. Regarding claim 2, see figures 4A and 4B of Stone. Regarding claim 3, Applicant should note that ring 18 that engages base of upper compression element and upper part of intermediate compression element acts as the claimed compression indicator, see paragraph [0023] of Stone. Regarding claims 4 and 5, see figures 4A and 4B of Stone. Regarding claim 6, see base 20 in figure 2. Regarding claim 7, extension 42 is equivalent to the claimed locator elements. Regarding claims 8 and 9, Applicant should note that spring 18 is structurally equivalent to the claimed segmented channel and a plurality of stops, see figure 3 of Stone. The friction interaction between base 20 and spring 18 will inhibit relative rotation between base 20 and intermediate compression element 16, effectively fulfilling the function of the claimed stops. Regarding claim 10, see figure 6 of Lind et al. With regard to claim 11, Stone discloses a toolless compression mechanism (fig. 2) comprising an upper compression element 20/22 having a hub (cylindrical portion of 22), a base 20 having a locator element 42 positioned on an underside surface of the base and a hub extension having inner threads disposed therein (as can be seen in figure 2, threads in 22), an intermediate compression element 16 having an upper intermediate compression surface having a channel 38 that upon assembly of the toolless compression mechanism mates with the upper compression element, a lower compression segment having an extension with threads that mate with the inner threads of the upper compression element, and a sealing element 14 positioned between the intermediate compression element and the lower compression segment, wherein when turned, the upper compression element is displaced along the extension such that the sealing element is compressed Figs 4A and 4B).Stone does not disclose the upper compression element having a winged portion surrounding the hub, however, Lind et al. teaches providing ribs/wings 56 to a similar upper compression elements of a compression mechanism having a winged portion surrounding a hub for reinforcement, see paragraph [0037] and figures 6 and 7. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, to have provided a winged portion surrounding the hub of the upper compression element of Stone, in light of the teachings of Lind et al. as reinforcement for the upper compression element. Regarding claim 12, see figure s 4A and 4B of Stone. Regarding claim 13, Applicant should note that ring 18 that engages base of upper compression element and upper part of intermediate compression element acts as the claimed compression indicator, see paragraph [0023] of Stone. Regarding claims 14 and 15, see figures 4A and 4B of Stone. Regarding claim 16, see base 20 in figure 2. Regarding claim 17, extension 42 is equivalent to the claimed locator elements. Regarding claims1 8 and 19, Applicant should note that spring 18 is structurally equivalent to the claimed segmented channel and a plurality of stops, see figure 3 of Stone. The friction interaction between base 20 and spring 18 will inhibit relative rotation between base 20 and intermediate compression element 16, effectively fulfilling the function of the claimed stops. Regarding claim 20, see figure 6 of Lind et al. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ESSAMA OMGBA whose telephone number is (469)295-9278. The examiner can normally be Monday to Friday: 10:00 AM – 6:00 PM. 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, Alford Kindred can be reached at 571-272-4037. 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. /ESSAMA OMGBA/Supervisory Patent Examiner, Art Unit 3746
Read full office action

Prosecution Timeline

Apr 17, 2024
Application Filed
Sep 21, 2026
Non-Final Rejection mailed — §103 (current)

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

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Prosecution Projections

1-2
Expected OA Rounds
59%
Grant Probability
92%
With Interview (+32.9%)
3y 6m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 812 resolved cases by this examiner. Grant probability derived from career allowance rate.

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