US3336995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cushion vehicle with thrust and anti-torque control means
Assignee: Individual
•
Filing: 1965-02-23
•
Granted: 1967-08-22
•
Expires: 1985-02-23
Abstract
No abstract record available.
Inventors
- 👤 Norman E Farb
- 👤 Norman D Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:45
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/04; B60V1/14; B60V1/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3104853A
Cited
US2996266A
Cited
US3042129A
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US3050146A
Cited
US3195665A
Cited
US3107071A
Cited
US3106261A
Cited
US3167145A
Cited
US3170276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |