US2739552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor drives for sewing machines
Assignee: Singer Co
•
Filing: 1953-04-16
•
Granted: 1956-03-27
•
Expires: 1973-04-16
Abstract
No abstract record available.
Inventors
- 👤 Norris H Sailer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:41
CPC Classifications
D; D05; D05B; D05B69/00; D05B69/14; D05B69/18; F; F16; F16H; F16H7/00; F16H7/08; F16H2007/0889; F16H2007/0893
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1193489A
Cited
US1292995A
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US1406933A
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US1488234A
Cited
US2086830A
Cited
DE675643C
Cited
US2195229A
Cited
US2664758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |