US1799847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifeboat launching device
Assignee: Individual
•
Filing: 1931-01-05
•
Granted: 1931-04-07
•
Expires: 1951-01-05
Abstract
No abstract record available.
Inventors
- 👤 Allen E Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:00
CPC Classifications
B; B63; B63B; B63B23/00; B63B23/40; B63B23/42; B63B23/44; B63B23/02; B63B23/04; B63B23/06; B63B23/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-04-06 | 1934-10-06 | 1935-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-04-06 | 1938-10-06 | 1939-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-04-06 | 1942-10-06 | 1943-04-07 | $7700.00 | Window Closed / Lapsed |