US2749709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual motor hydraulic drive and control valve therefor
Assignee: HYDRAULIK AS
•
Filing: 1952-10-10
•
Granted: 1956-06-12
•
Expires: 1972-10-10
Abstract
No abstract record available.
Inventors
- 👤 Vestre Rasmus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:41
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/44; B; B66; B66D; B66D1/00; B66D1/02; B66D1/08; F16H61/448; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169; Y10T137/87217
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1156817A
Cited
US2370526A
Cited
US2398265A
Cited
US2618291A
Cited
US2500627A
Cited
US2616259A
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 |