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US2476025A Expired / Lapsed US ⏱️ 0.0 years remaining

Precision frequency meter

Assignee: General Electric Co
•
Filing: 1945-06-09
•
Granted: 1949-07-12
•
Expires: 1965-06-09
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Abstract

No abstract record available.

Inventors

  • 👤 Howard L Clark

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 23:13
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/02

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

GB355705A Cited
US2119389A Cited
US2161146A Cited
US2295118A Cited
US2325927A Cited
US2352082A Cited
US2366076A Cited
US2405597A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1952-07-11 1953-01-10 1953-07-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1956-07-11 1957-01-10 1957-07-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1960-07-11 1961-01-10 1961-07-12 $7700.00 Window Closed / Lapsed

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