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US3006002A Expired / Lapsed US ⏱️ 0.0 years remaining

Air-sea-rescue drift buoy

Assignee: Individual
•
Filing: 1956-08-23
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Granted: 1961-10-31
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Expires: 1976-08-23
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Abstract

No abstract record available.

Inventors

  • 👤 Frederick De W Pingree
  • 👤 Robert G Walden
  • 👤 Harold E Sawyer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 12:59
CPC Classifications
B; B63; B63B; B63B51/00; B63B51/04

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

GB190613859A Cited
US1244848A Cited
US1922649A Cited
US2290215A Cited
US2322716A Cited
US2334211A Cited
US2387462A Cited
US2389266A Cited
US2587564A Cited
US2642693A Cited
US2803838A Cited
US2825803A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-10-30 1965-05-01 1965-10-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-10-30 1969-05-01 1969-10-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-10-30 1973-05-01 1973-10-31 $7700.00 Window Closed / Lapsed

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