US3605937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movement control system for fluid pressure vehicles
Assignee: CANIVE IND Ltd
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Filing: 1969-02-19
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Granted: 1971-09-20
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Expires: 1989-02-19
Abstract
Abstract A CONTROL SYSTEM FOR AIR-CUSHION VEHICLES REQUIRING ONLY A SINGLE CONTROL MEMBER TO CONTROL, USING A PORTION OF THE AIR PRESSURE SUPPLIED TO SUPPORT THE VEHICLE, THE MOVEMENT OF THE VEHICLE IN ONE OR MORE DIRECTIONS.
Inventors
- 👤 Charles Peter Kirwan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:40
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |