US2909401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewing machine head elevator
Assignee: Individual
•
Filing: 1957-04-08
•
Granted: 1959-10-20
•
Expires: 1977-04-08
Abstract
No abstract record available.
Inventors
- 👤 Ovide A Bjorgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:44
CPC Classifications
D; D05; D05B; D05B75/00; D05B75/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2575045A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |