Patent US3104770A successfully refreshed from Google Patents.
US3104770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat trailer
Assignee: —
•
Filing: —
•
Granted: 1963-09-24
•
Expires: 1980-09-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:59
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1033; B60P3/1066
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
IN A BOAT TRAILER, AN ELONGATED FRAME, TRANSVERSE ROLLERS ON THE FRAME SPACED LONGITUDINALLY AND TRANSVERSELY THEREOF OPERABLE TO GUIDE A BOAT ONTO AND OFF THE FRAME AND TO SUPPORT THE BOAT THEREON, AND BUNKS ON SAID FRAME ARRANGED IN SPACED APART LONGITUDINAL ROWS ADJACENT TO THE ROLLERS, EACH BUNK BEING INDIVIDUALLY MOVABLE UP AND DOWN BETWEEN A POSITION BELOW THE LEVEL OF THE ADJACENT ROLLER AND A POSITION ABOVE THE LEVEL OF THE ADJACENT ROLLER DETERMINED BY THE BOAT CONTOUR, INDIVIDUAL ADJUSTABLE LIFTING MEANS PROVIDED ON SAID FRAME FOR EACH BUNK OPERABLE TO RAISE IT AGAINST THE BOAT, COMPRISING A TRANSVERSE SHAFT ROTATABLY MOUNTED ON SAID FRAME BELOW EACH BUNK, A CROSS SHAFT JOINED PERPENDICULARLY TO EACH TRANSVERSE
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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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |