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US2281234A Expired / Lapsed US ⏱️ 0.0 years remaining

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Assignee: Individual
•
Filing: 1940-06-24
•
Granted: 1942-04-28
•
Expires: 1960-06-24
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Abstract

No abstract record available.

Inventors

  • 👤 Elvin C Clark
  • 👤 Harold J Clark

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 04:56
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/02; B60R1/06; B60R1/062; B60R1/064; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20468; Y10T74/20474; Y10T74/20492; Y10T74/20504

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1945-04-27 1945-10-27 1946-04-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1949-04-27 1949-10-27 1950-04-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1953-04-27 1953-10-27 1954-04-28 $7700.00 Window Closed / Lapsed

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