Collapsible wheelchair
Abstract
Abstract 1. A COLLAPSIBLE WHEELCHAIR COMPRISING: A PAIR OF SIDE RAIL MEMBERS, A PAIR OF END RAIL MEMBERS HAVING A PIVOTAL CONNECTION WITH SAID SIDE RAIL MEMBERS AND ADAPTED TO COLLAPSE FOR COLLAPSING SAID SIDE RAIL MEMBERS TOWARD ONE ANOTHER, SAID PAIR OF END RAIL MEMBERS BEING ADAPTED TO COMPLETE A SUBSTANTIALLY RECTANGULAR FRAME WITH SAID SIDE RAIL MEMBERS IN EXTENDED POSITION, A SEAT MEMBER FOR REMOVABLE POSITIONING UPON THE SAID SIDE RAIL MEMBERS AND END RAIL MEMBERS AND NORMALLY HOLDING SAID RAIL MEMBERS IN SAID EXTENDED POSITION, SAID SEAT MEMBER WHEN THUS POSITIONED ON SAID FRAME HAVING A LOW PROFILE AND AN UPPER SURFACE AT SEAT HEIGHT ABOVE THE GROUND ADAPTING THE SAME FOR CARRYING THE WEIGHT OF THE USER AND ENABLING THE USER TO STRADDLE SAID SEAT MEMBER AND SLIDE ON AND OFF SAID SEAT MEMBER, SAID SEAT MEMBER WHEN REMOVED ALLOWING COLLAPSE OF THE SAID SIDE RAIL MEMBERS TOWARD ONE ANOTHER, WHEEL MEANS ATTACHED TO SAID FRAME FOR SUPPORTING SAID FRAME IN A SUBSTANTIALLY HORIZONTAL PLANE AND SAID SEAT MEMBER COMPRISING A CUSHION CONCAVELY DEPRESSED BETWEEN ENDS THEREOF WHEREBY TO PROVIDE A SADDLE CONFIGURATION. D R A W I N G
Inventors
- 👤 N Falkenberg
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |