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US3445754A Expired / Lapsed US ⏱️ 0.0 years remaining

Reference oscillator and vco loop controlled dc regulator

Assignee: SAMUEL L BROADHEAD JR
•
Filing: 1966-12-09
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Granted: 1969-05-20
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Expires: 1986-12-09
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Abstract

No abstract record available.

Inventors

  • 👤 Samuel L Broadhead Jr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 22:30
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3155838A Cited
US3164769A Cited
US3226630A Cited
US3323037A Cited
US3341765A Cited
US3381202A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-05-19 1972-11-18 1973-05-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-05-19 1976-11-18 1977-05-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-05-19 1980-11-18 1981-05-20 $7700.00 Window Closed / Lapsed

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