Patent EP0084309A2 successfully refreshed from Google Patents.
US2459613A
Expired / Lapsed
US
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Valve mechanism for a hydraulic power unit
Assignee: Individual
•
Filing: 1947-02-26
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Granted: 1949-01-18
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Expires: 1967-02-26
Abstract
No abstract record available.
Inventors
- 👤 Gerald T Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:26
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/202; F15B13/00; F15B13/02; F15B13/04; F15B15/08; F15B15/14; F15B15/1423; F15B15/1433; F15B15/149; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87096; Y10T137/87113; Y10T137/87169; Y10T137/87177; Y10T137/87185
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) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |