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US2993465A Expired / Lapsed US ⏱️ 0.0 years remaining

Warning barrier

Assignee: Individual
•
Filing: 1959-07-13
•
Granted: 1961-07-25
•
Expires: 1979-07-13
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Abstract

No abstract record available.

Inventors

  • 👤 Max R Ginsley
  • 👤 Joseph A Dawson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 15:41
CPC Classifications
E; E01; E01F; E01F13/00; E01F13/02; E01F13/028; B; B60; B60Q; B60Q7/00; B60Q7/005; Y; Y10; Y10S; Y10S116/00; Y10S116/14

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

GB268908A Cited
US1705052A Cited
US2431108A Cited
CH290200A Cited
US2802443A Cited
US2887983A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-07-24 1965-01-23 1965-07-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-07-24 1969-01-23 1969-07-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-07-24 1973-01-23 1973-07-25 $7700.00 Window Closed / Lapsed

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