Patent US2741985A successfully refreshed from Google Patents.
US2741985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure relief for fluid pumps
Assignee: Individual
•
Filing: 1953-01-14
•
Granted: 1956-04-17
•
Expires: 1973-01-14
Abstract
No abstract record available.
Inventors
- 👤 John B Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:47
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C14/26; F16; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/044; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7845
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1173703A
Cited
US1352123A
Cited
US1416696A
Cited
US1416695A
Cited
US1780121A
Cited
US2032885A
Cited
US2202912A
Cited
US2246610A
Cited
US2268695A
Cited
US2393406A
Cited
US2405466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |