Patent US3209848A successfully refreshed from Google Patents.
US3209848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cushion vehicle
Assignee: AMF Inc
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Filing: 1961-07-19
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Granted: 1965-10-05
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Expires: 1981-07-19
Abstract
No abstract record available.
Inventors
- 👤 Robert L Holloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:16
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN AIR CUSHION VEHICLE COMPRISING A FRAME, A PLU-RALITY OF PLENUM CHAMBERS UNDER WHICH THE AIR CUSHION IS FORMED AND FROM WHICH AIR IS EXHAUSTED, SAID CHAMBERS FUNCTIONING AS THE VEHICLE LIFTING MEDIUM AND BEING ATTACHED IN TILTABLE RELATINSHIP TO SAID FRAME, STEERING CONTROL MEANS FOR TILTING AT LEAST ONE OF SAID PLENUM CHAMBERS WITH RESPECT TO SAID FRAME AND WITH RESPECT TO THE GROUND OVER WHICH THE VEHICLE TRAVELS TO VARY THE RELATIVE PROPORTION IN A SELECTED DIRECTION OF AIR EXHAUSTED FROM THE BOTTOM OF SAID CHAMBERS TO MANEUVER SAID VEHICLE, AND AN AIR GENERATING SOURCE TO SUPPLY AIR FOR SAID CHAM-
Claim 2
Dependent Claim
103 words
AN AIR CUSHION VEHICLE COMPRISING A FRAME, A PLU-RALITY OF PLENUM CHAMBERS UNDER WHICH THE AIR CUSHION IS FORMED AND FROM WHICH AIR IS EXHAUSTED, SAID CHAMBERS FUNCTIONING AS THE VEHICLE LIFTING MEDIUM AND BEING ATTACHED IN TILTABLE RELATINSHIP TO SAID FRAME, STEERING CONTROL MEANS FOR TILTING AT LEAST ONE OF SAID PLENUM CHAMBERS WITH RESPECT TO SAID FRAME AND WITH RESPECT TO THE GROUND OVER WHICH THE VEHICLE TRAVELS TO VARY THE RELATIVE PROPORTION IN A SELECTED DIRECTION OF AIR EXHAUSTED FROM THE BOTTOM OF SAID CHAMBERS TO MANEUVER SAID VEHICLE, AND AN AIR GENERATING SOURCE TO SUPPLY AIR FOR SAID CHAM-
References Cited (Backward Citations)
GB191400975A
Cited
US2926868A
Cited
US2981501A
Cited
US3097718A
Cited
US2955780A
Cited
FR1238499A
Cited
US3119598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |