Patent US3157301A successfully refreshed from Google Patents.
US3157301A
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Assignee: Individual
•
Filing: 1962-10-18
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Granted: 1964-11-17
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Expires: 1982-10-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Mcwilliams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:18
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN A POWERED LIFT TRUCK HAVING A MOBILE WHEELED BODY WITH A LIFTING AND UNLOADING STRUCTURE COMPRISING A LIFTING CARRIAGE, AND A LIFTING PLATFORM AND A PUSHER PLATE SUPPORTED FOR RELATIVE HORIZONTAL MOVEMENT ON SAID CARRIAGE, THE IMPROVEMENT THAT COMPRISES A HORIZONTAL RETAINING BAR, AND MEANS SUPPORTING SAID BAR ON SAID STRUCTURE FOR MOVEMENT FROM A RETRACTED POSITION TO AN EFFECTIVE POSITION WHEREIN THE FORWARD FACE OF THE BAR IS DISPOSED SUBSTANTIALLY IN THE PLANE OF THE FORWARD FACE OF THE PUSH PLATE AND IN DOWNWARDLY SPACED RELATION WITH RESPECT TO THE PLATFORM WHEREBY A LOAD ON THE PLATFORM MAY BE UNLOADED THEREFROM ONTO THE TOP OF A STACK SUPPORTED SEPARATE AND APART FROM THE LIFT TRUCK BY REARWARD MOVEMENT OF THE PLATFORM AND THE LIFT TRUCK WHILE THE PUSHER PLATE AND THE RETAINING BAR ARE MAINTAINED IN STATIONARY ENGAGEMENT, RESPECTIVELY, WITH SUCH LOAD AND AN UPPER PORTION OF THE STACK UPON WHICH SAID LOAD IS TO BE DEPOSITED.
Claim 2
Dependent Claim
159 words
IN A POWERED LIFT TRUCK HAVING A MOBILE WHEELED BODY WITH A LIFTING AND UNLOADING STRUCTURE COMPRISING A LIFTING CARRIAGE, AND A LIFTING PLATFORM AND A PUSHER PLATE SUPPORTED FOR RELATIVE HORIZONTAL MOVEMENT ON SAID CARRIAGE, THE IMPROVEMENT THAT COMPRISES A HORIZONTAL RETAINING BAR, AND MEANS SUPPORTING SAID BAR ON SAID STRUCTURE FOR MOVEMENT FROM A RETRACTED POSITION TO AN EFFECTIVE POSITION WHEREIN THE FORWARD FACE OF THE BAR IS DISPOSED SUBSTANTIALLY IN THE PLANE OF THE FORWARD FACE OF THE PUSH PLATE AND IN DOWNWARDLY SPACED RELATION WITH RESPECT TO THE PLATFORM WHEREBY A LOAD ON THE PLATFORM MAY BE UNLOADED THEREFROM ONTO THE TOP OF A STACK SUPPORTED SEPARATE AND APART FROM THE LIFT TRUCK BY REARWARD MOVEMENT OF THE PLATFORM AND THE LIFT TRUCK WHILE THE PUSHER PLATE AND THE RETAINING BAR ARE MAINTAINED IN STATIONARY ENGAGEMENT, RESPECTIVELY, WITH SUCH LOAD AND AN UPPER PORTION OF THE STACK UPON WHICH SAID LOAD IS TO BE DEPOSITED.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |