US2903006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire valves
Assignee: ROSTRA ENGINEERED COMPONENTS Inc A CORP OF CT
•
Filing: 1954-06-07
•
Granted: 1959-09-08
•
Expires: 1974-06-07
Abstract
No abstract record available.
Inventors
- 👤 Donald A Seaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:42
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/02; F16K41/04; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1819; Y10T137/1834
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189513029A
Cited
US1222758A
Cited
US1964509A
Cited
US1834645A
Cited
US2144125A
Cited
US2665714A
Cited
US2778223A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |