US3476069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple hull vehicle with air cushion support
Assignee: General Dynamics Corp
•
Filing: 1967-01-24
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Granted: 1969-11-04
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Expires: 1987-01-24
Abstract
No abstract record available.
Inventors
- 👤 Peter J Mantle
- 👤 Arnold M Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/04; B60V1/046; B63; B63B; B63B1/00; B63B1/32; B63B1/34; B63B1/38; Y; Y02; Y02T; Y02T70/00; Y02T70/10
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) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |