Patent US3155256A successfully refreshed from Google Patents.
US3155256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand truck
Assignee: Individual
•
Filing: 1963-03-08
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Granted: 1964-11-03
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Expires: 1983-03-08
Abstract
No abstract record available.
Inventors
- 👤 Burton E Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:40
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/10; B62B1/14; B62B2203/00; B62B2203/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A HAND TRUCK ADAPTED FOR THE HANDLING OF BULKY ITEMS AND FOR MOVEMENT THEREOF IN A MANNER TO PREVENT SIDEWISE TILTING, THE TRUCK COMPRISING: (A) AN OPEN, ELONGATED FRAME INCLUDING A PAIR OF VERTICALLY DISPOSED, TUBULAR SIDE MEMBERS EACH HAVING AN UPPER END AND A LOWER END AT LEAST ONE CROSS MEMBER; (B) A CURVILINEAR EXTENSION SECURED TO THE UPPER END OF EACH SIDE MEMBER AND EXTENDING REARWARDLY OF THE FRAME; (C) A HANDLE MEMBER LOCATED A SELECTED DISTANCE REARWARDLY OF THE FRAME AND CONNECTING THE EXTENSIONS TO ONE ANOTHER; (D) LOAD HANDLING MEANS SECURED TO THE SIDE MEMBERS AND EXTENDING FORWARDLY OF THE FRAME AND INCLUDING A BACK PLATE HAVING A FORWARD SURFACE AND A BASE PLATE EXTENDING BELOW THE FRAME; (E) A RESILIENT PAD ON THE FORWARD SURFACE OF THE BACK MEMBER; (F) WHEEL MOUNT BRACES EXTENDING REARWARDLY FROM THE FRAME AND SECURED TO THE SIDE MEMBERS ADJACENT THEIR LOWER ENDS;
Claim 2
Dependent Claim
153 words
A HAND TRUCK ADAPTED FOR THE HANDLING OF BULKY ITEMS AND FOR MOVEMENT THEREOF IN A MANNER TO PREVENT SIDEWISE TILTING, THE TRUCK COMPRISING: (A) AN OPEN, ELONGATED FRAME INCLUDING A PAIR OF VERTICALLY DISPOSED, TUBULAR SIDE MEMBERS EACH HAVING AN UPPER END AND A LOWER END AT LEAST ONE CROSS MEMBER; (B) A CURVILINEAR EXTENSION SECURED TO THE UPPER END OF EACH SIDE MEMBER AND EXTENDING REARWARDLY OF THE FRAME; (C) A HANDLE MEMBER LOCATED A SELECTED DISTANCE REARWARDLY OF THE FRAME AND CONNECTING THE EXTENSIONS TO ONE ANOTHER; (D) LOAD HANDLING MEANS SECURED TO THE SIDE MEMBERS AND EXTENDING FORWARDLY OF THE FRAME AND INCLUDING A BACK PLATE HAVING A FORWARD SURFACE AND A BASE PLATE EXTENDING BELOW THE FRAME; (E) A RESILIENT PAD ON THE FORWARD SURFACE OF THE BACK MEMBER; (F) WHEEL MOUNT BRACES EXTENDING REARWARDLY FROM THE FRAME AND SECURED TO THE SIDE MEMBERS ADJACENT THEIR LOWER ENDS;
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |