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US2411166A Expired / Lapsed US ⏱️ 0.0 years remaining

Frequency multiplier

Assignee: Collins Radio Co
•
Filing: 1942-10-02
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Granted: 1946-11-19
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Expires: 1962-10-02
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Abstract

No abstract record available.

Inventors

  • 👤 Roy H Olson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 11:17
CPC Classifications
H; H03; H03B; H03B19/00; H03B19/06; H03B19/08; H03B19/10

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1949-11-18 1950-05-20 1950-11-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1953-11-18 1954-05-20 1954-11-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1957-11-18 1958-05-20 1958-11-19 $7700.00 Window Closed / Lapsed

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