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US2836215A Expired / Lapsed US ⏱️ 0.0 years remaining

Plastic nut-like fastener with resilient wings

Assignee: Illinois Tool Works Inc
•
Filing: 1954-08-11
•
Granted: 1958-05-27
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Expires: 1974-08-11
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Abstract

No abstract record available.

Inventors

  • 👤 George M Rapata

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 17:22
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/06; F16B21/08; F16B21/086; F16B12/00; F16B12/10; F16B12/28; F16B12/30; F16B37/00; F16B37/04; F16B37/041; F16B37/043; F16L; F16L3/00; F16L3/08; F16L3/12; F16L3/13; Y; Y10; Y10S; Y10S292/00; Y10S292/38; Y10S411/00; Y10S411/913; Y10S411/924; Y10S411/947; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3439; Y10T24/344; Y10T24/3444; Y10T292/00; Y10T292/20; Y10T292/205

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2733067A Cited
US2104217A Cited
US2126482A Cited
US2279903A Cited
US2424757A Cited
US2596940A Cited
US2545514A Cited
US2476436A Cited
GB707819A Cited
US2788047A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-05-26 1961-11-25 1962-05-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-05-26 1965-11-25 1966-05-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-05-26 1969-11-25 1970-05-27 $7700.00 Window Closed / Lapsed

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