Patent US5857585A successfully refreshed from Google Patents.
Patent US3174573A successfully refreshed from Google Patents.
US3174573A
Expired / Lapsed
US
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Ground effect machine
Assignee: Bell Aerospace Corp
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Filing: 1963-05-13
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Granted: 1965-03-23
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Expires: 1983-05-13
Abstract
No abstract record available.
Inventors
- 👤 Chaplin John Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:22
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/04; B60V1/11; B60V1/115
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A GROUND EFFECT MACHINE COMPRISING, IN COMBINATION, A BODY HAVING A VERTICALLY DISPOSED INLET WELL HAVING AN OPEN BOTTOM, A PLURALITY OF CELL MEMBERS ADAPTED TO SUPPORT SAID BODY BY SUPERATMOSPHERIC AIR CUSHIONS FORMED IN SAID CELL MEMBERS, EACH CELL MEMBER HAVING A TOP, AND SAID CELL MEMBERS BEING DISPOSED IN CLOSELY SPACED RELATION, THE OPEN BOTTOM OF SAID WELL BEING POSITIONED TO OVERLIE ADJACENT PORTIONS OF SAID TOPS OF THE CELL MEMBERS AND SUCH PORTIONS OF SAID TOPS BEING OPEN SO THAT SAID WELL LEADS DIRECTLY DOWNWARDLY INTO EACH CELL MEMBER, AND MEANS FOR FORCING AIR DOWNWARDLY THROUGH SAID WELL AND INTO SAID CELL MEMBERS TO FORM SUPERATMOSPHERIC AIR CUSHIONS THEREIN.
References Cited (Backward Citations)
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US3083936A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |