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US2967481A Expired / Lapsed US ⏱️ 0.0 years remaining

Mine arming means

Assignee: Individual
•
Filing: 1945-09-17
•
Granted: 1961-01-10
•
Expires: 1965-09-17
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Abstract

No abstract record available.

Inventors

  • 👤 Howard W Semon
  • 👤 Everett L Deeter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 07:07
CPC Classifications
F; F42; F42C; F42C3/00; F42C19/00; F42C19/04

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE311620C Cited
US1311781A Cited
US1535633A Cited
US1448976A Cited
GB549998A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-01-10 1964-07-11 1965-01-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-01-10 1968-07-11 1969-01-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-01-10 1972-07-11 1973-01-10 $7700.00 Window Closed / Lapsed

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