US2938346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control devices for hydraulic actuators
Assignee: Individual
•
Filing: 1958-08-05
•
Granted: 1960-05-31
•
Expires: 1978-08-05
Abstract
No abstract record available.
Inventors
- 👤 Gratzmuller Jean Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:53
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B13/00; F15B13/02; F15B13/04; F15B13/0401; F15B13/0405; H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/34; H01H2033/308
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |