US2939314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid leakage meter
Assignee: General Dynamics Corp
•
Filing: 1956-12-20
•
Granted: 1960-06-07
•
Expires: 1976-12-20
Abstract
No abstract record available.
Inventors
- 👤 William A Prince
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:30
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22; G01F1/34; G01F1/36; G01F1/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US283490A
Cited
US1393942A
Cited
US1720934A
Cited
US1858399A
Cited
US1901432A
Cited
FR1114506A
Cited
US2853874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |