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US3469131A Expired / Lapsed US ⏱️ 0.0 years remaining

Synchronous timer motors

Assignee: General Time Corp
•
Filing: 1968-04-05
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Granted: 1969-09-23
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Expires: 1988-04-05
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Abstract

No abstract record available.

Inventors

  • 👤 Frank William Stellwagen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 22:43
CPC Classifications
G; G04; G04C; G04C15/00; H; H02; H02K; H02K21/00; H02K21/12; H02K21/14; H02K21/18; H02K21/185

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US545554A Cited
US1708334A Cited
US2191074A Cited
US3087079A Cited
US3088044A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-09-22 1973-03-24 1973-09-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-09-22 1977-03-24 1977-09-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-09-22 1981-03-24 1981-09-23 $7700.00 Window Closed / Lapsed

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