US3259200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding self-propelled invalid chair
Assignee: Individual
•
Filing: 1965-04-26
•
Granted: 1966-07-05
•
Expires: 1985-04-26
Abstract
No abstract record available.
Inventors
- 👤 Maijala William Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:49
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/06; A61G5/061; A61G5/066; B; B62; B62D; B62D55/00; B62D55/06; B62D55/07; B62D55/075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A CHAIR, THE COMBINATION OF FRAME MEANS, ENDLESS TRACK MEANS MOUNTED ON THE FRAME MEANS ON OPPOSITE SIDES OF SAID CHAIR, A TRANSVERSE CROSS MEMBE ATTACHED TO SAID FRAME MEANS, A SEAT PIVOTALLY MOUNTED ON SAID TRANSVERSE CROSS MEMBER, A THREADED NUT ATTACHED TO SAID CROSS MEMBER, A MOTOR ATTACHED TO SAID SEAT SAID MOTOR CONNECTED TO A THREADED SHAFT THREADED IN SAID NUT WHEREBY SAID SEAT MAY BE TILTED ABOUT SAID TRANSVERSE CROSS MEMBER IN RESPONSE TO ACTUATION OF SAID MOTOR MEANS FOR REMOVABLY CONNECTING OPPOSITE ENDS OF THE TRANSVERSE CROSS MEMBER TO SAID FRAME MEANS WHEREBY THE SEAT AND CROSS MEMBER CAN BE REMOVED FROM THE FRAME MEANS AND ENDLESS TRACK MEANS.
Claim 2
Dependent Claim
115 words
IN A CHAIR, THE COMBINATION OF FRAME MEANS, ENDLESS TRACK MEANS MOUNTED ON THE FRAME MEANS ON OPPOSITE SIDES OF SAID CHAIR, A TRANSVERSE CROSS MEMBE ATTACHED TO SAID FRAME MEANS, A SEAT PIVOTALLY MOUNTED ON SAID TRANSVERSE CROSS MEMBER, A THREADED NUT ATTACHED TO SAID CROSS MEMBER, A MOTOR ATTACHED TO SAID SEAT SAID MOTOR CONNECTED TO A THREADED SHAFT THREADED IN SAID NUT WHEREBY SAID SEAT MAY BE TILTED ABOUT SAID TRANSVERSE CROSS MEMBER IN RESPONSE TO ACTUATION OF SAID MOTOR MEANS FOR REMOVABLY CONNECTING OPPOSITE ENDS OF THE TRANSVERSE CROSS MEMBER TO SAID FRAME MEANS WHEREBY THE SEAT AND CROSS MEMBER CAN BE REMOVED FROM THE FRAME MEANS AND ENDLESS TRACK MEANS.
References Cited (Backward Citations)
US2082693A
Cited
US2592023A
Cited
US2751027A
Cited
US2934383A
Cited
US3068950A
Cited
US3166138A
Cited
US3172699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |