US3565460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for control of bounce in tractor-trailer combinations
Assignee: Caterpillar Inc
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Filing: 1968-12-23
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Granted: 1971-02-23
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Expires: 1988-12-23
Abstract
Abstract A HITCH FOR A TRACTOR-TRAILER UNIT WITH SCISSORS-TYPE LINKAGES AT BOTH THE FRONT AND REAR OF THE HITCH CONNECTED BY TRANSFER TUBES AND A STRUT CUSHION HITCH COMPRISING A SINGLE CYLINDER-ACCUMULATOR STRUCTURE. TRAILER MOVEMENT RELATIVE TO THE TRACTOR IS RESTRICTED TO VERTICAL TRANSLATION AND THE LOADS IMPOSED UPON THE TRACTOR FRAME ARE EQUALIZED THROUGHT THE LINKAGES.
Inventors
- 👤 Harvey A Knell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:47
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/02; B62D53/021; E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/6454; E02F3/65; E02F3/652; E02F3/653
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |