US2535874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Life jacket
Assignee: Individual
•
Filing: 1947-11-07
•
Granted: 1950-12-26
•
Expires: 1967-11-07
Abstract
No abstract record available.
Inventors
- 👤 Roy E Starn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:19
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/11; B63C9/115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189503943A
Cited
US1270686A
Cited
US1723402A
Cited
US1788480A
Cited
US2331301A
Cited
US2329093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |