Patent US3218102A successfully refreshed from Google Patents.
US3218102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Invalid chair
Assignee: Individual
•
Filing: 1963-03-27
•
Granted: 1965-11-16
•
Expires: 1983-03-27
Abstract
No abstract record available.
Inventors
- 👤 Specketer Francis La Monte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:21
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/14; A47; A47C; A47C7/00; A47C7/02; A47C7/14; Y; Y10; Y10S; Y10S297/00; Y10S297/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN COMBINATION, AN ARM CHAIR HAVING A SWING SEAT HINGED NEAR ITS FRONT AT THE FRONT OF THE CHAIR BY HINGE MEANS, A ROLLER ENGAGING THE BOTTOM OF SAID SEAT AND ARRANGED TO ROLL FORE-AND-AFT THEREALONG, AND A LIFT MECHANISM CARRIED BY SAID CHAIR AND INCLUDING LIFT ARM MEANS CARRYING SAID ROLLER NEAR ITS REAR END AND HAVING ITS FORWARD END HINGED ABOUT A SWING AXIS PARALLEL TO THAT OF THE SWING SEAT, A JACK SCREW HAVING A TRAVELER NUT AND HAVING BOTH OF ITS ENDS ROTATABLE IN BEARINGS FIXED RELATIVE TO SAID HINGE MEANS, REVERSIBLE ELECTRIC MOTOR MEANS FOR TURNING SAID JACK SCREW, SAID MEANS BETWEEN SAID NUT AND LIFT ARM MEANS FOR SWINGING THE LIFT ARM MEANS UPWARDLY AND RESPONSIVELY RAISING THE REAR OF SAID SEAT IN RESPONSE TO FORWARD TRAVEL OF SAID TRAVELER NUT ALONG SAID SCREW.
Claim 2
Dependent Claim
140 words
IN COMBINATION, AN ARM CHAIR HAVING A SWING SEAT HINGED NEAR ITS FRONT AT THE FRONT OF THE CHAIR BY HINGE MEANS, A ROLLER ENGAGING THE BOTTOM OF SAID SEAT AND ARRANGED TO ROLL FORE-AND-AFT THEREALONG, AND A LIFT MECHANISM CARRIED BY SAID CHAIR AND INCLUDING LIFT ARM MEANS CARRYING SAID ROLLER NEAR ITS REAR END AND HAVING ITS FORWARD END HINGED ABOUT A SWING AXIS PARALLEL TO THAT OF THE SWING SEAT, A JACK SCREW HAVING A TRAVELER NUT AND HAVING BOTH OF ITS ENDS ROTATABLE IN BEARINGS FIXED RELATIVE TO SAID HINGE MEANS, REVERSIBLE ELECTRIC MOTOR MEANS FOR TURNING SAID JACK SCREW, SAID MEANS BETWEEN SAID NUT AND LIFT ARM MEANS FOR SWINGING THE LIFT ARM MEANS UPWARDLY AND RESPONSIVELY RAISING THE REAR OF SAID SEAT IN RESPONSE TO FORWARD TRAVEL OF SAID TRAVELER NUT ALONG SAID SCREW.
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |