US2680504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch and brake for sewing machines
Assignee: Union Special Machine Co
•
Filing: 1948-05-07
•
Granted: 1954-06-08
•
Expires: 1968-05-07
Abstract
No abstract record available.
Inventors
- 👤 Albert M Schweda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:03
CPC Classifications
F; F16; F16D; F16D67/00; F16D67/02; D; D05; D05B; D05B69/00; D05B69/10; D05B69/12; D05B69/125; F16D55/00; F16D55/24; F16D55/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US710685A
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US1009424A
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US870263A
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US1166979A
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US2006913A
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US2235972A
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US2269788A
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US2383103A
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US2481867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |