US2771965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewing machine lubrication
Assignee: Singer Co
•
Filing: 1953-12-15
•
Granted: 1956-11-27
•
Expires: 1973-12-15
Abstract
No abstract record available.
Inventors
- 👤 Parry Frank
- 👤 Ivan E Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:31
CPC Classifications
D; D05; D05B; D05B71/00; F; F16; F16N; F16N7/00; F16N7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2372175A
Cited
US2601210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |