US3250239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amphibious vehicles
Assignee: Individual
•
Filing: 1964-01-20
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Granted: 1966-05-10
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Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 Garate Juan Jose Chico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:27
CPC Classifications
B; B60; B60F; B60F3/00; B60F3/0007; B60F3/0023; B63; B63H; B63H1/00; B63H1/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
AN AMPHIBIOUS VEHICLE, COMPRISING A BODY HAVING A WATER TIGHT HULL, A PLURALITY OF SUBSTANTIALLY IDENTICAL ARCHIMEDEAN SCREWS HAVING LONGITUDINAL AXES AND FUNCTIONING AS PROPELLING ROTORS FOR BOTH LAND AND WATER MOVEMENTS OF THE VEHICLE, MEANS MOUNTING SAID SCREWS BELOW THE HULL TO SUPPORT THE BODY AT AN ELEVATED LEVEL, MEANS FOR DRIVING EACH SCREW ABOUT ITS OWN AXIS, AND MEANS FOR ORIENTATING EACH SCREW TO TURN TO POSITIONS TRANSVERSE TO SAID BODY.
Claim 2
Dependent Claim
73 words
AN AMPHIBIOUS VEHICLE, COMPRISING A BODY HAVING A WATER TIGHT HULL, A PLURALITY OF SUBSTANTIALLY IDENTICAL ARCHIMEDEAN SCREWS HAVING LONGITUDINAL AXES AND FUNCTIONING AS PROPELLING ROTORS FOR BOTH LAND AND WATER MOVEMENTS OF THE VEHICLE, MEANS MOUNTING SAID SCREWS BELOW THE HULL TO SUPPORT THE BODY AT AN ELEVATED LEVEL, MEANS FOR DRIVING EACH SCREW ABOUT ITS OWN AXIS, AND MEANS FOR ORIENTATING EACH SCREW TO TURN TO POSITIONS TRANSVERSE TO SAID BODY.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |