US2803110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic power drive for reciprocating members
Assignee: Keelavite Co Ltd
•
Filing: 1954-06-07
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Granted: 1957-08-20
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Expires: 1974-06-07
Abstract
No abstract record available.
Inventors
- 👤 Chittenden George Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:10
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/027; B23Q5/033; B21; B21J; B21J9/00; B21J9/10; B21J9/12; F; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F01L25/06; F01L25/08; Y; Y10; Y10S; Y10S60/00; Y10S60/911
Claims Analysis
Total Claims: 0
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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) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |