US3381627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicles
Assignee: Hovercraft Development Ltd
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Filing: 1966-07-19
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Granted: 1968-05-07
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Expires: 1986-07-19
Abstract
No abstract record available.
Inventors
- 👤 Hart William Barrie
- 👤 Bing Alan John
- 👤 Stroude Roger Boulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:50
CPC Classifications
B; B60; B60V; B60V3/00; B60V3/02; B60V3/04; B60V1/00; B60V1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A VEHICLE WHICH OBTAINS AT LEAST OCCASIONAL SUPPORT FROM A CUSHION OF PRESSURISED GAS FORMED AND CONTAINED BETWEEN THE VEHICLE BODY AND THE SURFACE OVER WHICH THE VEHICLE OPERATES, PROVIDED WITH A CHAMBER HAVING A MOVABLE WALL PART WHICH FACES THE SURFACE, THE WALL PART BEING FLEXIBLY CONNECTED TO THE REMAINDER OF THE CHAMBER SO AS TO BE MOVABLE TOWARDS AND AWAY FROM THE SURFACE, GAS SUPPLY MEANS FOR SUPPLYING PRESSURISED GAS TO THE CHAMBER INTERIOR, CUSHION-FORMING MEANS FOR DIRECTING GAS FROM THE CHAMBER TO BETWEEN THE WALL PART AND THE SURFACE SO AS TO FORM SAID CUSHION OF GAS THEREBETWEEN AND RESILIENT MEANS FOR BIASING THE WALL PART AWAY FROM THE SURFACE AGAINST THE LOADING OF GAS IN THE CHAMBER.
Claim 2
Dependent Claim
121 words
A VEHICLE WHICH OBTAINS AT LEAST OCCASIONAL SUPPORT FROM A CUSHION OF PRESSURISED GAS FORMED AND CONTAINED BETWEEN THE VEHICLE BODY AND THE SURFACE OVER WHICH THE VEHICLE OPERATES, PROVIDED WITH A CHAMBER HAVING A MOVABLE WALL PART WHICH FACES THE SURFACE, THE WALL PART BEING FLEXIBLY CONNECTED TO THE REMAINDER OF THE CHAMBER SO AS TO BE MOVABLE TOWARDS AND AWAY FROM THE SURFACE, GAS SUPPLY MEANS FOR SUPPLYING PRESSURISED GAS TO THE CHAMBER INTERIOR, CUSHION-FORMING MEANS FOR DIRECTING GAS FROM THE CHAMBER TO BETWEEN THE WALL PART AND THE SURFACE SO AS TO FORM SAID CUSHION OF GAS THEREBETWEEN AND RESILIENT MEANS FOR BIASING THE WALL PART AWAY FROM THE SURFACE AGAINST THE LOADING OF GAS IN THE CHAMBER.
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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |