Patent US3131904A successfully refreshed from Google Patents.
US3131904A
Expired / Lapsed
US
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Tilting chair construction
Assignee: Individual
•
Filing: 1961-07-25
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Granted: 1964-05-05
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Expires: 1981-07-25
Abstract
No abstract record available.
Inventors
- 👤 Lie Finn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:25
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/025; A47C3/026; A47C7/00; A47C7/36; A47C7/40; A47C7/44; A47C7/445; A47C7/4454
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN A TILTING CHAIR IRON, A SEAT SUPPORT COMPRISING TWO LATERALLY SPACED FRAME ELEMENTS, A PAIR OF SUPPORT TUBES, EACH OF SAID TUBES HAVING ONE END CONNECTED TO ONE OF SAID FRAME ELEMENTS, THE OTHER ENDS OF SAID TUBES BEING CONNECTED TO A SPACER WITH THE TUBES IN AXIAL ALIGNMENT, SAID SPACER BEING EFFECTIVE TO SPACE THE OTHER ENDS OF SAID SUPPORT TUBES A SHORT DISTANCE APART, A TORSION BAR TUBE POSITIONED WITHIN SAID SUPPORT TUBES IN ROTATABLE RELATION THEREIN, A SPINDLE SOCKET SUPPORT ROTATABLY MOUNTED ON SAID TORSION BAR TUBE WITHIN SAID SPACER AND BETWEEN THE OTHER ENDS OF SAID SUPPORT TUBES, A KEY IN SAID TORSION BAR TUBE ENGAGEABLE WITH SAID SPINDLE SOCKET SUPPORT, AN ELONGATED TORSION BAR WITHIN SAID TORSION BAR TUBE, SAID TORSION BAR BEING CONNECTED TO SAID TORSION BAR TUBE AT ONE POINT, AND ADJUSTABLE ABUTMENT MEANS CARRIED BY SAID TORSION BAR AND SPACED FROM SAID ONE POINT AND CONTACTABLY ENGAGING SAID SEAT SUPPORT.
Claim 2
Dependent Claim
159 words
IN A TILTING CHAIR IRON, A SEAT SUPPORT COMPRISING TWO LATERALLY SPACED FRAME ELEMENTS, A PAIR OF SUPPORT TUBES, EACH OF SAID TUBES HAVING ONE END CONNECTED TO ONE OF SAID FRAME ELEMENTS, THE OTHER ENDS OF SAID TUBES BEING CONNECTED TO A SPACER WITH THE TUBES IN AXIAL ALIGNMENT, SAID SPACER BEING EFFECTIVE TO SPACE THE OTHER ENDS OF SAID SUPPORT TUBES A SHORT DISTANCE APART, A TORSION BAR TUBE POSITIONED WITHIN SAID SUPPORT TUBES IN ROTATABLE RELATION THEREIN, A SPINDLE SOCKET SUPPORT ROTATABLY MOUNTED ON SAID TORSION BAR TUBE WITHIN SAID SPACER AND BETWEEN THE OTHER ENDS OF SAID SUPPORT TUBES, A KEY IN SAID TORSION BAR TUBE ENGAGEABLE WITH SAID SPINDLE SOCKET SUPPORT, AN ELONGATED TORSION BAR WITHIN SAID TORSION BAR TUBE, SAID TORSION BAR BEING CONNECTED TO SAID TORSION BAR TUBE AT ONE POINT, AND ADJUSTABLE ABUTMENT MEANS CARRIED BY SAID TORSION BAR AND SPACED FROM SAID ONE POINT AND CONTACTABLY ENGAGING SAID SEAT SUPPORT.
References Cited (Backward Citations)
US2718257A
Cited
US2935119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |