US3289778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable nozzle structure for surface effect devices
Assignee: Hovercraft Development Ltd
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Filing: 1963-06-06
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Granted: 1966-12-06
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Expires: 1983-06-06
Abstract
No abstract record available.
Inventors
- 👤 Page Reginald Bannerman
- 👤 Tattersall Edward Gunston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:57
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/04; B60V1/043; B60V1/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A VEHICLE FOR TRAVELLING OVER A SURFACE AND WHICH IN OPERATION IS SUPPORTED ABOVE THE SURFACE BY AT LEAST ONE CUSHION OF PRESSURIZED GAS FORMED BENEATH THE VEHICLE IN WHICH THE CUSHION IS CONTAINED FOR AT LEAST PART OF ITS PERIPHERY BY AN INFLATABLE STRUCTURE, WHEREIN THE INFLATABLE STRUCTURE IS CONTRAINED TO FORM WHEN INFLATED VARIOUS SHAPES DAPENDENT UPON THE INFLATION PRESSURE, SAID STRUCTURE COMPRISING A PAIR OF INNER AND OUTER SPACED APART GASIMPERVIOUS WALLS, THE INNER WALL BEING CLOSER TO THE GAS CUSHION THAN THE OUTER WALL, CONSTRAINING MEANS CONNECTING SAID WALLS AND CONSTRAINING THE LATTER TO SAID SPACED
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |