US3211246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cushion vehicle
Assignee: Vinters Armstrongs Ltd
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Filing: 1962-08-08
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Granted: 1965-10-12
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Expires: 1982-08-08
Abstract
No abstract record available.
Inventors
- 👤 Lewis Nigel Wickham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:50
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/04; B60V1/043; B60V1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
AN AIR CUSHION BORNE VEHICLE COMPRISING A VEHICLE BODY, THERE BEING AT LEAST ONE OPENING ON THE UNDERSIDE OF THE VEHICLE BODY, A FLEXIBLE SKIRT EXTENDING DOWNWARDLY FROM THE PERIPHERAL PART OF THE VEHICLE BODY FOR ENCIRCLING A SPACE BELOW THE VEHICLE BODY, AND MEANS FOR FORCING AIR THROUGH SAID OPENING INTO SAID SPACE TO FORM AN AIR CUSHION THAT SUPPORTS THE VEHICLE, THE SKIRT BEING OF CORRUGATED FORM IN PLAN VIEW, THE OUTERMOST PARTS OF THE SKIRT BEING RELATIVELY RESISTANT TO BUCKLING SO FAR AS COMPRESSIVE FORCES ON THESE PARTS IN THE UP AND DOWN DIRECTION ARE CONCERNED, WHILE THE INNERMOST PARTS OF THE SKIRT ARE RELATIVELY PRONE TO BUCKLING SO FAR AS COMPRESSIVE FORCES ON THESE PARTS IN THE UP AND DOWN DIRECTION ARE CONCERNED.
Claim 2
Dependent Claim
127 words
AN AIR CUSHION BORNE VEHICLE COMPRISING A VEHICLE BODY, THERE BEING AT LEAST ONE OPENING ON THE UNDERSIDE OF THE VEHICLE BODY, A FLEXIBLE SKIRT EXTENDING DOWNWARDLY FROM THE PERIPHERAL PART OF THE VEHICLE BODY FOR ENCIRCLING A SPACE BELOW THE VEHICLE BODY, AND MEANS FOR FORCING AIR THROUGH SAID OPENING INTO SAID SPACE TO FORM AN AIR CUSHION THAT SUPPORTS THE VEHICLE, THE SKIRT BEING OF CORRUGATED FORM IN PLAN VIEW, THE OUTERMOST PARTS OF THE SKIRT BEING RELATIVELY RESISTANT TO BUCKLING SO FAR AS COMPRESSIVE FORCES ON THESE PARTS IN THE UP AND DOWN DIRECTION ARE CONCERNED, WHILE THE INNERMOST PARTS OF THE SKIRT ARE RELATIVELY PRONE TO BUCKLING SO FAR AS COMPRESSIVE FORCES ON THESE PARTS IN THE UP AND DOWN DIRECTION ARE CONCERNED.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |