US3159365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring fastening
Assignee: Individual
•
Filing: 1961-06-01
•
Granted: 1964-12-01
•
Expires: 1981-06-01
Abstract
No abstract record available.
Inventors
- 👤 James P Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:20
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/015; H02B1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2263039A
Cited
US2449646A
Cited
US2790961A
Cited
US2788187A
Cited
US2778930A
Cited
US2879977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |