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US2678119A Expired / Lapsed US ⏱️ 0.0 years remaining

Centrifugal clutch

Assignee: BELLE IND Inc
•
Filing: 1950-05-05
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Granted: 1954-05-11
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Expires: 1970-05-05
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Abstract

No abstract record available.

Inventors

  • 👤 Lester W Birbaum

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 17:23
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/02; F16D43/04; F16D43/06; F16D43/08; F16D43/10

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

FR510360A Cited
US1766227A Cited
US1714748A Cited
US1883872A Cited
US1859334A Cited
US2012509A Cited
US1981823A Cited
CH182113A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1957-05-10 1957-11-09 1958-05-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1961-05-10 1961-11-09 1962-05-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1965-05-10 1965-11-09 1966-05-11 $7700.00 Window Closed / Lapsed

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