Patent US3757962A successfully refreshed from Google Patents.
Patent US3133745A successfully refreshed from Google Patents.
US3133745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tandem suspension for tractors and trailers
Assignee: OLE GRANNING TRAILER SERVICE Inc
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Filing: 1961-05-29
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Granted: 1964-05-19
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Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Granning Ole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:14
CPC Classifications
B; B60; B60G; B60G5/00; B60G5/04; B60G11/00; B60G11/26; B60G11/27
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A SUSPENSION SUB-ASSEMBLY FOR A VEHICLE COMPRISING A SUB-ASSEMBLY FRAME SEPARATE FROM THE VEHICLE FRAME, SAID SUB-ASSEMBLY FRAME BEING OF A SIZE AND INCLUDING STRUCTURE FOR MOUNTING THEREOF ON THE VEHICLE FRAME, A FIRST AXLE SUPPORT STRUCTURE CARRIED ON THE REARWARD END OF THE SUB-ASSEMBLY FRAME, SAID FIRST AXLE SUPPORT STRUCTURE COMPRISING A PAIR OF DOWNWARDLY DEPENDING SPACED APART LEG MEMBERS, THE ADJACENT SURFACES OF THE LEG MEMBERS DEFINING A VERTICAL GUIDE, A VERTICALLY SLIDABLE ELEMENT RECEIVED IN SAID GUIDE, A SPRING STRUCTURE SECURABLE TO ONE OF THE VEHICLE FRAME AND SUB-ASSEMBLY FRAME INTERMEDIATE THE REARWARD AND FORWARD ENDS OF THE SUBASSEMBLY FRAME, AN AXLE SUSPENDED FROM SAID SPRING STRUCTURE, A SPINDLE EXTENDING OUTWARDLY FROM THE LENGTHWISE CENTER OF THE AXLE TOWARDS THE FIRST AXLE SUPPORT STRUCTURE, THE OUTER END OF THE SPINDLE EXTENDING ROTATABLY INTO SAID VERTICALLY SLIDABLE ELEMENT, A DRAWBAR EX-
Claim 2
Dependent Claim
143 words
A SUSPENSION SUB-ASSEMBLY FOR A VEHICLE COMPRISING A SUB-ASSEMBLY FRAME SEPARATE FROM THE VEHICLE FRAME, SAID SUB-ASSEMBLY FRAME BEING OF A SIZE AND INCLUDING STRUCTURE FOR MOUNTING THEREOF ON THE VEHICLE FRAME, A FIRST AXLE SUPPORT STRUCTURE CARRIED ON THE REARWARD END OF THE SUB-ASSEMBLY FRAME, SAID FIRST AXLE SUPPORT STRUCTURE COMPRISING A PAIR OF DOWNWARDLY DEPENDING SPACED APART LEG MEMBERS, THE ADJACENT SURFACES OF THE LEG MEMBERS DEFINING A VERTICAL GUIDE, A VERTICALLY SLIDABLE ELEMENT RECEIVED IN SAID GUIDE, A SPRING STRUCTURE SECURABLE TO ONE OF THE VEHICLE FRAME AND SUB-ASSEMBLY FRAME INTERMEDIATE THE REARWARD AND FORWARD ENDS OF THE SUBASSEMBLY FRAME, AN AXLE SUSPENDED FROM SAID SPRING STRUCTURE, A SPINDLE EXTENDING OUTWARDLY FROM THE LENGTHWISE CENTER OF THE AXLE TOWARDS THE FIRST AXLE SUPPORT STRUCTURE, THE OUTER END OF THE SPINDLE EXTENDING ROTATABLY INTO SAID VERTICALLY SLIDABLE ELEMENT, A DRAWBAR EX-
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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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |