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US3004174A Expired / Lapsed US ⏱️ 0.0 years remaining

Four phase clock

Assignee: General Precision Inc
•
Filing: 1959-05-15
•
Granted: 1961-10-10
•
Expires: 1979-05-15
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Abstract

No abstract record available.

Inventors

  • 👤 Seidman Herbert Alvin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 16:51
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/153; H03K5/1536; H03K5/1532

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2657318A Cited
US2644895A Cited
US2866106A Cited
US2913600A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-10-09 1965-04-10 1965-10-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-10-09 1969-04-10 1969-10-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-10-09 1973-04-10 1973-10-10 $7700.00 Window Closed / Lapsed

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