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US2665379A Expired / Lapsed US ⏱️ 0.0 years remaining

Frequency divider

Assignee: MINSHALL ESTEY ORGAN Inc
•
Filing: 1950-09-08
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Granted: 1954-01-05
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Expires: 1970-09-08
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Abstract

No abstract record available.

Inventors

  • 👤 George H Hadden

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 05:51
CPC Classifications
G; G10; G10H; G10H5/00; G10H5/02; G10H5/06; G10H5/07; G10H5/10; H; H03; H03B; H03B19/00; H03B19/06; H03B19/08; H03B19/12; Y; Y10; Y10S; Y10S84/00; Y10S84/11

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2251973A Cited
US2141343A Cited
US2277000A Cited
US2342286A Cited
US2426179A Cited
US2419340A Cited
US2538278A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1957-01-04 1957-07-06 1958-01-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1961-01-04 1961-07-06 1962-01-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1965-01-04 1965-07-06 1966-01-05 $7700.00 Window Closed / Lapsed

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