Patent US3301520A successfully refreshed from Google Patents.
US3301520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient suspension for tractor seats and the like
Assignee: Individual
•
Filing: 1965-06-28
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Granted: 1967-01-31
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Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 Barth Manfred
- 👤 Hummel Gunter
- 👤 Blumenthal Reinhard
- 👤 Hendrich Gerhard
- 👤 Puls Erdmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:33
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/502; B60N2/505; B60N2/506; B60N2/507; B60N2/54; B60N2/548
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A VEHICLE, IN COMBINATION WITH A SEAT MEMBER AND A SUPPORT MEMBER, A VEHICULAR SEAT SUSPENSION FOR RESILIENTLY MOUNTING SAID SEAT MEMBER UPON SAID SUPPORT MEMBER, SAID SUSPENSION COMPRISING LINK MEANS PIVOTALLY CONNECTED TO SAID SEAT MEMBER AND SAID SUPPORT MEMBER WHILE FORMING A PARALLELOGRAMMATIC LINKAGE THEREBETWEEN FOR PERMITTING SUBSTANTIALLY VERTICAL MOVEMENT OF SAID SEAT MEMBER RELATIVELY TO SAID SUPPORT MEMBER WHILE MAINTAINING THE ORIENTATION OF THE SEATING SURFACE OF SAID SEAT MEMBER; AT LEAST ONE TORSION BAR SWINGABLE ABOUT AN AXIS OF A PIVOT CONNECTING SAID LINK MEANS WITH SAID MEMBERS AND EXTENDING GENERALLY TRANSVERSELY TO SAID AXIS, WHILE BEING ENTRAINABLE BY SAID SEAT MEMBER FOR ROTATION ABOUT SAID AXIS; RETAINING MEANS ANCHORING ONE END OF SAID BAR AGAINST ROTATION ABOUT THE AXIS
Claim 2
Dependent Claim
125 words
IN A VEHICLE, IN COMBINATION WITH A SEAT MEMBER AND A SUPPORT MEMBER, A VEHICULAR SEAT SUSPENSION FOR RESILIENTLY MOUNTING SAID SEAT MEMBER UPON SAID SUPPORT MEMBER, SAID SUSPENSION COMPRISING LINK MEANS PIVOTALLY CONNECTED TO SAID SEAT MEMBER AND SAID SUPPORT MEMBER WHILE FORMING A PARALLELOGRAMMATIC LINKAGE THEREBETWEEN FOR PERMITTING SUBSTANTIALLY VERTICAL MOVEMENT OF SAID SEAT MEMBER RELATIVELY TO SAID SUPPORT MEMBER WHILE MAINTAINING THE ORIENTATION OF THE SEATING SURFACE OF SAID SEAT MEMBER; AT LEAST ONE TORSION BAR SWINGABLE ABOUT AN AXIS OF A PIVOT CONNECTING SAID LINK MEANS WITH SAID MEMBERS AND EXTENDING GENERALLY TRANSVERSELY TO SAID AXIS, WHILE BEING ENTRAINABLE BY SAID SEAT MEMBER FOR ROTATION ABOUT SAID AXIS; RETAINING MEANS ANCHORING ONE END OF SAID BAR AGAINST ROTATION ABOUT THE AXIS
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |