US2859457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Life rafts
Assignee: Individual
•
Filing: 1955-07-05
•
Granted: 1958-11-11
•
Expires: 1975-07-05
Abstract
No abstract record available.
Inventors
- 👤 Charles E Manhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:08
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/02; B63C9/08; B63C9/20; B63B; B63B2201/00; B63B2201/04; B63B2201/08; B63C9/04; B63C2009/042; B63C2009/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1392533A
Cited
US1142592A
Cited
GB242817A
Cited
US1686366A
Cited
US1667912A
Cited
US1867563A
Cited
US2109813A
Cited
US2192203A
Cited
US2396212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |