US2749892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic lifter
Assignee: Eaton Corp
•
Filing: 1952-04-03
•
Granted: 1956-06-12
•
Expires: 1972-04-03
Abstract
No abstract record available.
Inventors
- 👤 Gerald D Line
- 👤 Sidney L Riley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:11
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1792836A
Cited
US2237854A
Cited
US2096257A
Cited
US2220336A
Cited
FR988202A
Cited
US2665669A
Cited
US2654356A
Cited
US2645215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |