US3108564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Land-water transportation vehicle
Assignee: AQUA TRAC CORP
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Filing: 1961-12-26
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Granted: 1963-10-29
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Harold L Prosser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:20
CPC Classifications
B; B60; B60F; B60F3/00; B60F3/0007; B60F3/0015; B60F3/0061; B60F3/0084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A TRACK-TYPE VEHICLE CAPABLE OF SELF-PROPULSION ON LAND AND WATER COMPRISING A CHASSIS, TREAD SUPPORT MEMBERS CONNECTED TO OPPOSITE SIDES OF SAID VEHICLE, EACH INCLUDING A SERIES OF ROTATABLE MEMBERS DEFINING A GENERALLY OBLONG TRACK HAVING A LOWER SUBSTANTIALLY HORIZONTAL COURSE EXTENDING THROUGH THE LENGTH OF SAID VEHICLE, DRIVE MEANS ON SAID CHASSIS DRIVINGLY CONNECTED TO AT LEAST ONE OF SAID ROTATABLE MEMBERS IN EACH TREAD SUPPORT MEMBER, AND AN ENDLESS, RELATIVELY WIDE TREAD SECTION TRAINED FOR ADVANCEMENT AROUND EACH THREAD SUPPORT MEMBER, EACH TREAD HAVING AN ENDLESS DRIVE BELT IN DRIVE-CONTACTING RELATION WITH SAID ROTATABLE MEMBERS AND AN OUTER RELATIVELY THICK, COMPRESSIBLE SECTION OF LOW DENSITY, THE OUTER SECTION INCLUDING TRANSVERSELY EXTENDING SEGMENTS EACH OF CONVEX CROSS-SECTIONAL CONFIGURATION SERVING AS LAND-WATER ENGAGING SURFACES, AND SAID TREAD SECTIONS TOGETHER PROVIDING WHEN IN CONTACT WITH THE WATER AN AREA OF CONTACT ALONG THEIR LOWER COURSES CAPABLE OF DISPLACING A VOLUME OF WATER GREATER IN WEIGHT THAN THE TOTAL DRY WEIGHT OF THE VEHICLE.
Claim 2
Dependent Claim
162 words
A TRACK-TYPE VEHICLE CAPABLE OF SELF-PROPULSION ON LAND AND WATER COMPRISING A CHASSIS, TREAD SUPPORT MEMBERS CONNECTED TO OPPOSITE SIDES OF SAID VEHICLE, EACH INCLUDING A SERIES OF ROTATABLE MEMBERS DEFINING A GENERALLY OBLONG TRACK HAVING A LOWER SUBSTANTIALLY HORIZONTAL COURSE EXTENDING THROUGH THE LENGTH OF SAID VEHICLE, DRIVE MEANS ON SAID CHASSIS DRIVINGLY CONNECTED TO AT LEAST ONE OF SAID ROTATABLE MEMBERS IN EACH TREAD SUPPORT MEMBER, AND AN ENDLESS, RELATIVELY WIDE TREAD SECTION TRAINED FOR ADVANCEMENT AROUND EACH THREAD SUPPORT MEMBER, EACH TREAD HAVING AN ENDLESS DRIVE BELT IN DRIVE-CONTACTING RELATION WITH SAID ROTATABLE MEMBERS AND AN OUTER RELATIVELY THICK, COMPRESSIBLE SECTION OF LOW DENSITY, THE OUTER SECTION INCLUDING TRANSVERSELY EXTENDING SEGMENTS EACH OF CONVEX CROSS-SECTIONAL CONFIGURATION SERVING AS LAND-WATER ENGAGING SURFACES, AND SAID TREAD SECTIONS TOGETHER PROVIDING WHEN IN CONTACT WITH THE WATER AN AREA OF CONTACT ALONG THEIR LOWER COURSES CAPABLE OF DISPLACING A VOLUME OF WATER GREATER IN WEIGHT THAN THE TOTAL DRY WEIGHT OF THE VEHICLE.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |