Patent US3138269A successfully refreshed from Google Patents.
US3138269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semitrailer with elevator
Assignee: Individual
•
Filing: 1963-03-14
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Granted: 1964-06-23
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Expires: 1983-03-14
Abstract
No abstract record available.
Inventors
- 👤 Stanley C Wilkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:50
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/12; B60P3/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A TRAILER FOR TRANSPORTING MATERIAL HANDLING VEHICLES COMPRISING: A CHASSIS, SAID CHASSIS HAVING TWO LATERALLY SPACED REARWARDLY EXTENDING SUPPORT MEMBERS THAT DEFINE THEREBETWEEN A REARWARDLY OPENING SLOT THROUGH SAID CHASSIS, A LOADING BOX DISPOSED FOR VERTICAL MOVEMENT THROUGH THE SLOT IN SAID TRAILER, SAID LOADING BOX HAVING A FLOOR AND UPSTANDING SIDEWALLS, HOIST MEANS MOUNTED ON EACH OF SAID TWO SUPPORT MEMBERS AND OPERATIVELY CONNECTED TO SAID LOADING BOX WHEREBY SAID LOADING BOX CAN BE RAISED FROM GROUND LEVEL TO AN ELEVATED POSITION, A PAIR OF UPSTANDING INWARDLY FACING U-SHAPED CHANNELS SECURED AT THEIR LOWER ENDS TO THE INNER SURFACE OF EACH OF SAID SUPPORT MEMBERS, SAID CHANNELS BEING LOCATED ONE ADJACENT THE FORWARD PORTION OF EACH OF SAID BOX WALLS AND ONE ADJACENT THE REARWARD PORTION OF EACH OF SAID WALLS, A GUIDE ROLLER ASSEMBLY ENGAGING THE INNER SURFACES OF EACH OF SAID
Claim 2
Dependent Claim
144 words
A TRAILER FOR TRANSPORTING MATERIAL HANDLING VEHICLES COMPRISING: A CHASSIS, SAID CHASSIS HAVING TWO LATERALLY SPACED REARWARDLY EXTENDING SUPPORT MEMBERS THAT DEFINE THEREBETWEEN A REARWARDLY OPENING SLOT THROUGH SAID CHASSIS, A LOADING BOX DISPOSED FOR VERTICAL MOVEMENT THROUGH THE SLOT IN SAID TRAILER, SAID LOADING BOX HAVING A FLOOR AND UPSTANDING SIDEWALLS, HOIST MEANS MOUNTED ON EACH OF SAID TWO SUPPORT MEMBERS AND OPERATIVELY CONNECTED TO SAID LOADING BOX WHEREBY SAID LOADING BOX CAN BE RAISED FROM GROUND LEVEL TO AN ELEVATED POSITION, A PAIR OF UPSTANDING INWARDLY FACING U-SHAPED CHANNELS SECURED AT THEIR LOWER ENDS TO THE INNER SURFACE OF EACH OF SAID SUPPORT MEMBERS, SAID CHANNELS BEING LOCATED ONE ADJACENT THE FORWARD PORTION OF EACH OF SAID BOX WALLS AND ONE ADJACENT THE REARWARD PORTION OF EACH OF SAID WALLS, A GUIDE ROLLER ASSEMBLY ENGAGING THE INNER SURFACES OF EACH OF SAID
References Cited (Backward Citations)
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US2812868A
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |