US3113686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat trailer
Assignee: Individual
•
Filing: 1960-12-19
•
Granted: 1963-12-10
•
Expires: 1980-12-19
Abstract
No abstract record available.
Inventors
- 👤 George H Sundin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:43
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1033; B60P1/00; B60P1/02; B60P1/027; B60P1/04; B60P1/30; B60P1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
A BOAT TRAILER OF THE DROP FRAME TYPE COMPRISING A FRAME, A PAIR OF WHEELS LOCATED AT THE SIDES OF SAID FRAME AND NEAR THE REAR END THEREOF, A PAIR OF ARMS PIVOTALLY CONNECTED AT ONE END TO SAID FRAME AND PIVOTALLY CONNECTED TO SAID WHEELS AT THEIR OTHER END, A DRAWBAR HAVING ITS FORWARD END ADAPTED TO BE ATTACHED TO A VEHICLE AND ITS REAR END PIVOTALLY CONNECTED TO SAID FRAME TO PERMIT THEREBY THE FORWARD END OF SAID FRAME TO BE LOWERED WHEN SAID DRAWBAR IS CAUSED TO ASSUME AN ACUTE ANGLE WITH SAID FRAME, OPERATING MEANS MOUNTED ON SAID DRAWBAR, MOTION TRANSMITTING MEANS EXTENDING FORWARDLY FROM SAID ARMS TO SAID OPERATING MEANS, AND ROLLER MEANS CARRIED BY SAID ARMS SO AS TO BE MOVABLE THEREWITH BUT RELATIVE TO SAID FRAME SO AS TO SUPPORT A PORTION OF THE WEIGHT OF SAID BOAT AFTER SAID FRAME HAS BEEN LOWERED TO A PREDETERMINED EXTENT, WHEREBY WHEN SAID OPERATING MEANS IS ACTUATED IN ONE DIRECTION WITH THE FORWARD END OF SAID DRAWBAR CONSTRAINED AGAINST RECTILINEAR MOVEMENT SAID ARMS WILL CAUSE SAID WHEELS TO MOVE FORWARDLY AND SAID FRAME TO MOVE UPWARDLY UNTIL SAID DRAWBAR HAS ASSUMED A SUBSTANTIALLY STRAIGHT LINE RELATIONSHIP WITH SAID FRAME.
Claim 2
Dependent Claim
204 words
A BOAT TRAILER OF THE DROP FRAME TYPE COMPRISING A FRAME, A PAIR OF WHEELS LOCATED AT THE SIDES OF SAID FRAME AND NEAR THE REAR END THEREOF, A PAIR OF ARMS PIVOTALLY CONNECTED AT ONE END TO SAID FRAME AND PIVOTALLY CONNECTED TO SAID WHEELS AT THEIR OTHER END, A DRAWBAR HAVING ITS FORWARD END ADAPTED TO BE ATTACHED TO A VEHICLE AND ITS REAR END PIVOTALLY CONNECTED TO SAID FRAME TO PERMIT THEREBY THE FORWARD END OF SAID FRAME TO BE LOWERED WHEN SAID DRAWBAR IS CAUSED TO ASSUME AN ACUTE ANGLE WITH SAID FRAME, OPERATING MEANS MOUNTED ON SAID DRAWBAR, MOTION TRANSMITTING MEANS EXTENDING FORWARDLY FROM SAID ARMS TO SAID OPERATING MEANS, AND ROLLER MEANS CARRIED BY SAID ARMS SO AS TO BE MOVABLE THEREWITH BUT RELATIVE TO SAID FRAME SO AS TO SUPPORT A PORTION OF THE WEIGHT OF SAID BOAT AFTER SAID FRAME HAS BEEN LOWERED TO A PREDETERMINED EXTENT, WHEREBY WHEN SAID OPERATING MEANS IS ACTUATED IN ONE DIRECTION WITH THE FORWARD END OF SAID DRAWBAR CONSTRAINED AGAINST RECTILINEAR MOVEMENT SAID ARMS WILL CAUSE SAID WHEELS TO MOVE FORWARDLY AND SAID FRAME TO MOVE UPWARDLY UNTIL SAID DRAWBAR HAS ASSUMED A SUBSTANTIALLY STRAIGHT LINE RELATIONSHIP WITH SAID FRAME.
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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |