Patent US3185240A successfully refreshed from Google Patents.
US3185240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cushion borne vehicles
Assignee: Vinters Armstrongs Ltd
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Filing: 1963-01-15
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Granted: 1965-05-25
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Expires: 1983-01-15
Abstract
No abstract record available.
Inventors
- 👤 Eggington Wilfred James
- 👤 Lewis Nigel Wickham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:57
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/11; B60V1/12; B60V1/04; B60V1/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A VEHICLE ADAPTED TO BE AT LEAST PARTIALLY SUPPORTED ON AIR CUSHIONS, THE VEHICLE COMPRISING A BODY, A PLURALITY OF PLENUM CHAMBER CELLS FOR CONTAINING THE AIR CUSHIONS, EACH CELL HAVING A TOP PART AND A FLEXIBLE SKIRT DEPENDING FROM THE PERIPHERY OF SAID TOP, EACH CELLS TO SAID BODY THE BOTTOM, MEANS FOR CONNECTING THE CELLS TO SAID BODY FOR INDEPENDENT MOVEMENT OF THE CELLS RELATIVE TO EACH OTHER AND TO THE BODY, SAID CONNECTING MEANS COMPRISING AT LEAST ONE LINKAGE AND ONE RESILIENT MEANS BOTH PIVOTALLY SECURED TO THE VEHICLE BODY AND TO SAID CELLS, SAID RESILIENT MEANS EFFECTING PARTIAL RESTRAINT OF MOVEMENT OF SAID CELLS WITH RESPECT TO THE VEHICLE BODY AND FLEXIBLE DUCT MEANS ASSOCIATED WITH THE CELLS, AND MEANS FOR SUPPLYING AIR THROUGH SAID DUCT TO SAID CELLS TO FORM THE AIR CUSHIONS.
Claim 2
Dependent Claim
138 words
A VEHICLE ADAPTED TO BE AT LEAST PARTIALLY SUPPORTED ON AIR CUSHIONS, THE VEHICLE COMPRISING A BODY, A PLURALITY OF PLENUM CHAMBER CELLS FOR CONTAINING THE AIR CUSHIONS, EACH CELL HAVING A TOP PART AND A FLEXIBLE SKIRT DEPENDING FROM THE PERIPHERY OF SAID TOP, EACH CELLS TO SAID BODY THE BOTTOM, MEANS FOR CONNECTING THE CELLS TO SAID BODY FOR INDEPENDENT MOVEMENT OF THE CELLS RELATIVE TO EACH OTHER AND TO THE BODY, SAID CONNECTING MEANS COMPRISING AT LEAST ONE LINKAGE AND ONE RESILIENT MEANS BOTH PIVOTALLY SECURED TO THE VEHICLE BODY AND TO SAID CELLS, SAID RESILIENT MEANS EFFECTING PARTIAL RESTRAINT OF MOVEMENT OF SAID CELLS WITH RESPECT TO THE VEHICLE BODY AND FLEXIBLE DUCT MEANS ASSOCIATED WITH THE CELLS, AND MEANS FOR SUPPLYING AIR THROUGH SAID DUCT TO SAID CELLS TO FORM THE AIR CUSHIONS.
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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |