Prosecution Insights
Last updated: July 17, 2026
Application No. 18/967,818

METHODS OF FORMING ROUNDED RIVET BUTTONS ON CAN ENDS

Non-Final OA §102
Filed
Dec 04, 2024
Examiner
EKIERT, TERESA M
Art Unit
3725
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Stolle Machinery Company, LLC
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
1y 3m
Est. Remaining
82%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
911 granted / 1149 resolved
+9.3% vs TC avg
Minimal +3% lift
Without
With
+3.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
30 currently pending
Career history
1175
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
56.8%
+16.8% vs TC avg
§102
15.0%
-25.0% vs TC avg
§112
26.2%
-13.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1149 resolved cases

Office Action

§102
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. Claims 1-3 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by LaBarge et al. (hereafter “LaBarge”)(US Patent 4,685,849). With regards to claim 1, LaBarge discloses a method of forming a rivet button in a can end, the method comprising: providing a sheet material with a base thickness (14); forming the sheet material into a shel1(12); forming a bubble (142) on the shell; forming the bubble into a rivet button (192) with a top portion, wherein the top portion comprises a rounded profile having a plurality of curvatures each having a distinct radius of curvature [Column 22, lines 48-58, Figures 27-29]; and performing finishing operations on the can end [Column 21, lines 54-57 and Column 23, lines 15-30]. With regards to claim 2, LaBarge discloses wherein the step of forming the bubble (142) into a rivet button comprises: forming the bubble into a first rivet button (192) at a first rivet station [Column 22, lines 25-38]; and forming the first rivet button into a second rivet button at a second rivet station, wherein the second rivet button comprises a rounded exterior surface and a rounded interior surface and defines an arcuate rivet sidewall [Column 22, lines 59+]. With regards to claim 3, LaBarge discloses wherein the step of performing finishing operations on the can end includes: providing a tab (10) with a body, the body including an opening; positioning the tab over the rivet button with the rivet button extending through the tab opening, Figures 6-9; and forming the rivet button into a rivet (36) with a rounded head, wherein the rivet has an overlap of the tab body, as seen in Figure 31. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure and further show the state of the art: US 2005/0199627. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TERESA M EKIERT whose telephone number is (571)272-1901. The examiner can normally be reached Monday-Friday 8AM-4:30PM EST. 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, Christopher 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. /TERESA M EKIERT/Primary Examiner, Art Unit 3725
Read full office action

Prosecution Timeline

Dec 04, 2024
Application Filed
Jun 18, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12667882
MACHINE FOR DEFORMATION MACHINING OF A TUBE AND/OR OF A COMPONENT ON THE TUBE
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Patent 12662275
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Patent 12661705
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Patent 12654217
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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
79%
Grant Probability
82%
With Interview (+3.0%)
2y 10m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1149 resolved cases by this examiner. Grant probability derived from career allowance rate.

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