US2785698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety valve
Assignee: J J JENKINS
•
Filing: 1953-08-18
•
Granted: 1957-03-19
•
Expires: 1973-08-18
Abstract
No abstract record available.
Inventors
- 👤 Vance Byron T Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:12
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/164; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/7722; Y10T137/7723; Y10T137/7725; Y10T137/7728
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US770866A
Cited
US1501331A
Cited
US1516011A
Cited
US1960284A
Cited
GB478156A
Cited
US2295611A
Cited
US2626633A
Cited
US2597582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |