Patent US3137511A successfully refreshed from Google Patents.
US3137511A
Expired / Lapsed
US
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Stretcher chair
Assignee: Individual
•
Filing: 1961-04-05
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Granted: 1964-06-16
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Expires: 1981-04-05
Abstract
No abstract record available.
Inventors
- 👤 Weil Burt
- 👤 Richard H Ferneau
- 👤 Elroy E Bourgraf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:09
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/06; A61G5/061; A61G5/006; A61G5/066; A61G5/08; A61G5/0808; A61G5/085; A61G5/0858; A61G5/0883; A61G5/0891
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
134 words
AN ARTICULATED STRETCHER CHAIR COMPRISING, A BACK PANEL, A SEAT PANEL PIVOTED TO SAID BACK PANEL, FRONT LEGS PIVOTED TO SAID SEAT PANEL AND DEPENDING THEREFROM, WHEELS ON THE LOWER ENDS OF SAID LEGS, REAR LEGS DEPENDING FROM SAID SEAT PANEL, A RELEASABLE BRACE CONNECTED BETWEEN SAID REAR LEGS AND SAID SEAT PANEL, A PAIR OF SKIDS EXTENDING BETWEEN THE LOWER ENDS OF SAID LEGS AND PIVOTED THERETO, MEANS FOR TILTING SAID SEAT PANEL BACK WITH RESPECT TO SAID SKIDS, A MAJOR PORTION OF SAID SKIDS BEING BELOW THE LOWER EXTREMITIES OF SAID WHEELS, SAID SKIDS HAVING EXTENSIONS PROJECTING REARWARDLY AND UPWARDLY FROM THE LOWER ENDS OF SAID REAR LEGS, AND WHEELS ON THE REARWARD EXTENSIONS OF SAID SKIDS, SAID STRETCHER CHAIR BEING COLLAPSIBLE TO A SUBSTANTIALLY FLAT POSITION UPON RELEASE OF SAID BRACE.
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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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |