US3385218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pump system
Assignee: Individual
•
Filing: 1966-05-18
•
Granted: 1968-05-28
•
Expires: 1986-05-18
Abstract
No abstract record available.
Inventors
- 👤 West Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:47
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/12; F; F04; F04D; F04D15/00; F04D15/02; F04D15/0209; F04D15/0218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1518890A
Cited
US1779353A
Cited
US2765743A
Cited
US2772331A
Cited
US2955173A
Cited
US3318247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |