US3193215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerodynamically designed amphibious vehicle
Assignee: John J Mcmullen Associates Inc
•
Filing: 1963-01-24
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Granted: 1965-07-06
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Expires: 1983-01-24
Abstract
No abstract record available.
Inventors
- 👤 William H Dunham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:45
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/08; B60V1/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
IN AN AMPHIBIOUS VEHICLE HAVING A HULL, A LEADING EDGE, A BASE AND A TRAILING EDGE, A PAIR OF SIDE PLATES, ONE SIDE PLATE MOUNTED ON EACH SIDE OF SAID HULL BETWEEN SAID LEADING EDGE AND SAID TRAILING EDGE, SAID SIDE PLATES BEING DIRECTED OUTWARDLY FROM SAID HULL AT AN ANGLE OF ABOUT 45* FROM THE VERTICAL AND SWEPT REARWARDLY AT AN ANGLE OF ABOUT 60* FROM THE CENTER OF THE HULL, SAID SIDE PLATES DEFINING AN AIR INTAKE TO INGEST AMBIENT AIR, COMPRESSING MEANS IN SAID AIR INTAKE TO COMPRESS SAID INGESTED AIR AND DUCT MEANS COUPLED TO SAID COMPRESSING MEANS TO CONDUCT SAID COMPRESSED AIR.
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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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |