US2618291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve for hydraulic drive transmissions
Assignee: HYDRAULIK AS
•
Filing: 1947-01-08
•
Granted: 1952-11-18
•
Expires: 1967-01-08
Abstract
No abstract record available.
Inventors
- 👤 Vestre Rasmus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:34
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/44; F16H61/448; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87338
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1156816A
Cited
US1156817A
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US1590226A
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US2184793A
Cited
US2362349A
Cited
US2370526A
Cited
US2387307A
Cited
US2374714A
Cited
US2391930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |