US2941609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steering of tracked vehicles
Assignee: Dowty Hydraulic Units Ltd
•
Filing: 1957-07-08
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Granted: 1960-06-21
•
Expires: 1977-07-08
Abstract
No abstract record available.
Inventors
- 👤 Eric H Bowers
- 👤 Thoma Oswald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:18
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; B; B62; B62D; B62D11/00; B62D11/02; B62D11/04; B62D11/06; B62D11/10; B62D11/14; B62D11/18; B62D11/183; F16H61/42; F16H61/437; F16H48/00; F16H48/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190300611A
Cited
US2227696A
Cited
US2359758A
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US2393324A
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US2407322A
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US2446242A
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US2704131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |