US3239237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractible logging trailer unloading strap
Assignee: Pierce Trailer and Equipment Co
•
Filing: 1963-09-19
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Granted: 1966-03-08
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Expires: 1983-09-19
Abstract
No abstract record available.
Inventors
- 👤 Clark V Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:39
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/07; B60P3/073; Y; Y10; Y10S; Y10S294/00; Y10S294/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A RETRACTIBLE LOGGING TRAILER UNLOADING STRAP ASSEMBLY COMPRISING A MOUNT ADAPTED TO BE SECURED TO A LOGGING TRAILER ADJACENT AND ABOVE ITS CENTER OF GRAVITY, A BAIL-TYPE LOADING STRAP INCLUDING A PAIR OF DEPENDING LEGS INTERCONNECTED AT THEIR UPPER ENDS BY MEANS OF A BIGHT PORTION, MEANS PIVOTALLY SECURING SAID STRAP TO SAID MOUNT FOR ROTATION ABOUT AN AXIS BETWEEN THE LOWER ENDS OF SAID LEGS FOR MOVEMENT BETWEEN A RAISED OPERATIVE SUBSTANTIALLY VERTICALLY DISPOSED POSITION AND A LOWERED INOPERATIVE SUBSTANTIALLY HORIZONTALLY DISPOSED POSITION, MEANS YIELDINGLY URGING SAID STRAP TOWARD SAID RAISED OPERATIVE POSITION, AND FLUID MOTOR MEANS CON-
Claim 2
Dependent Claim
99 words
A RETRACTIBLE LOGGING TRAILER UNLOADING STRAP ASSEMBLY COMPRISING A MOUNT ADAPTED TO BE SECURED TO A LOGGING TRAILER ADJACENT AND ABOVE ITS CENTER OF GRAVITY, A BAIL-TYPE LOADING STRAP INCLUDING A PAIR OF DEPENDING LEGS INTERCONNECTED AT THEIR UPPER ENDS BY MEANS OF A BIGHT PORTION, MEANS PIVOTALLY SECURING SAID STRAP TO SAID MOUNT FOR ROTATION ABOUT AN AXIS BETWEEN THE LOWER ENDS OF SAID LEGS FOR MOVEMENT BETWEEN A RAISED OPERATIVE SUBSTANTIALLY VERTICALLY DISPOSED POSITION AND A LOWERED INOPERATIVE SUBSTANTIALLY HORIZONTALLY DISPOSED POSITION, MEANS YIELDINGLY URGING SAID STRAP TOWARD SAID RAISED OPERATIVE POSITION, AND FLUID MOTOR MEANS CON-
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |