Patent US2619112A successfully refreshed from Google Patents.
US2619112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure relief valve
Assignee: Denison Engineering Co
•
Filing: 1946-06-12
•
Granted: 1952-11-25
•
Expires: 1966-06-12
Abstract
No abstract record available.
Inventors
- 👤 Wendell E Renick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:14
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/10; F16K17/105; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7765; Y10T137/7766
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US230828A
Cited
US235748A
Cited
US534514A
Cited
US832178A
Cited
US851165A
Cited
US973551A
Cited
US1138241A
Cited
US1357837A
Cited
US2043453A
Cited
US2375410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |