US2839078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relief valve
Assignee: PANTEX Manufacturing CORP
•
Filing: 1953-07-03
•
Granted: 1958-06-17
•
Expires: 1973-07-03
Abstract
No abstract record available.
Inventors
- 👤 Frank C Lornitzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:53
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/0426; F16K17/0406; F16K17/044; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7834
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1182166A
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US1998553A
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FR925168A
Cited
US2416091A
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US2415750A
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US2474122A
Cited
US2522913A
Cited
US2624361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |