US2888909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid dumping valve arrangement for a hydraulic jack
Assignee: Individual
•
Filing: 1954-12-10
•
Granted: 1959-06-02
•
Expires: 1974-12-10
Abstract
No abstract record available.
Inventors
- 👤 Gratzmuller Jean Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:43
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/1423; F15B15/1433; F15B15/149
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1726102A
Cited
US2225518A
Cited
US2187371A
Cited
US2152870A
Cited
US2252418A
Cited
US2524552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |