Patent US3333861A successfully refreshed from Google Patents.
US3333861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller assembly for boats
Assignee: Individual
•
Filing: 1964-11-27
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Granted: 1967-08-01
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Expires: 1984-11-27
Abstract
No abstract record available.
Inventors
- 👤 William B Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:09
CPC Classifications
B; B65; B65G; B65G7/00; B65G7/02; B65G7/04; B63; B63C; B63C13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A LAUNCHING, LANDING AND SHORT HAUL ROLLER ASSEMBLY FOR A BOAT HAVING COOPERATING ELEMENTS ON ITS SIDES FOR THE TEMPORARY ATTACHMENT OF THE ASSEMBLY TO AND COMPLETE DETACHMENT THEREOF FROM THE BOAT, SAID ASSEMBLY COMPRISING, AN ELONGATED RIGID AXLE, AT LEAST ONE ELONGATED ROLLER MOUNTED ON SAID AXLE AND HAVING A COMPRESSIBLE RESILIENT SURFACE, SAID ROLLER BEING CAPABLE OF AVOIDING SINKING IN SOFT TERRAIN UNDER THE WEIGHT OF THE BOAT AND ALSO OF SURMOUNTING HARD OBJECTS IN THE TERRAIN, THE AXLE AND ROLLER BEING ADAPTED TO BE OPERATIVELY POSITIONED TRANSVERSELY BENEATH THE BOAT, TOGETHER WITH A PAIR OF UPRISING STRUTS HAVING THEIR LOWER ENDS DETACHABLY SECURED TO SAID AXLE ADJACENT THE EXTREMITIES OF THE LATTER AND THEIR UPPER ENDS FORMED FOR TEMPORARY OPERATIVE ENGAGEMENT WITH SAID COOPERATING ELEMENTS ON THE SIDES OF THE BOAT.
Claim 2
Dependent Claim
134 words
A LAUNCHING, LANDING AND SHORT HAUL ROLLER ASSEMBLY FOR A BOAT HAVING COOPERATING ELEMENTS ON ITS SIDES FOR THE TEMPORARY ATTACHMENT OF THE ASSEMBLY TO AND COMPLETE DETACHMENT THEREOF FROM THE BOAT, SAID ASSEMBLY COMPRISING, AN ELONGATED RIGID AXLE, AT LEAST ONE ELONGATED ROLLER MOUNTED ON SAID AXLE AND HAVING A COMPRESSIBLE RESILIENT SURFACE, SAID ROLLER BEING CAPABLE OF AVOIDING SINKING IN SOFT TERRAIN UNDER THE WEIGHT OF THE BOAT AND ALSO OF SURMOUNTING HARD OBJECTS IN THE TERRAIN, THE AXLE AND ROLLER BEING ADAPTED TO BE OPERATIVELY POSITIONED TRANSVERSELY BENEATH THE BOAT, TOGETHER WITH A PAIR OF UPRISING STRUTS HAVING THEIR LOWER ENDS DETACHABLY SECURED TO SAID AXLE ADJACENT THE EXTREMITIES OF THE LATTER AND THEIR UPPER ENDS FORMED FOR TEMPORARY OPERATIVE ENGAGEMENT WITH SAID COOPERATING ELEMENTS ON THE SIDES OF THE BOAT.
References Cited (Backward Citations)
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US2339782A
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US2824592A
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US3216735A
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US3112727A
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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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |