Patent FR1182936A successfully refreshed from Google Patents.
US3492890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four-wheel-drive motor vehicles
Assignee: Harry Ferguson Research Ltd
•
Filing: 1968-04-08
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Granted: 1970-02-03
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Expires: 1988-04-08
Abstract
No abstract record available.
Inventors
- 👤 Claude Hill
- 👤 Keith Hamilton-Smith
- 👤 Derek Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:18
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/34; B60K17/344; B60K17/346; B60K17/3462; B60K17/3465; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19112; Y10T74/19116
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) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |