US2495754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salvage valve
Assignee: Individual
•
Filing: 1945-09-04
•
Granted: 1950-01-31
•
Expires: 1965-09-04
Abstract
No abstract record available.
Inventors
- 👤 Clarence R Nance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:27
CPC Classifications
B; B63; B63C; B63C7/00; B63C7/06; B63C7/12; Y; Y10; Y10T; Y10T137/00; Y10T137/794; Y10T137/7976
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US551829A
Cited
US567115A
Cited
US945517A
Cited
US998352A
Cited
US1367250A
Cited
US1493293A
Cited
US1547934A
Cited
US1657404A
Cited
US2045975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |