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US3524046A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus and method for piercing holes in elastomeric articles

Assignee: Alcoa Corp
•
Filing: 1968-04-26
•
Granted: 1970-08-11
•
Expires: 1988-04-26
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Abstract

No abstract record available.

Inventors

  • 👤 Nicolaas L Brouwer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 17:13
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/02; B23K26/06; B23K26/0604; B23K26/0619; B23K26/067; B23K26/36; B23K26/38; B23K26/382; B26; B26F; B26F1/00; B26F1/26; B26F1/31; B23K2103/00; B23K2103/30; B23K2103/42; B23K2103/50; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53657; Y10T29/53661; Y10T83/00; Y10T83/283; Y10T83/444; Y10T83/4607

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US682626A Cited
US2528157A Cited
US2620428A Cited
US3265855A Cited
US3226527A Cited
CH430177A Cited
US3369101A Cited
US3410979A Cited
US3419321A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-08-10 1974-02-09 1974-08-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-08-10 1978-02-09 1978-08-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-08-10 1982-02-09 1982-08-11 $7700.00 Window Closed / Lapsed

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