USRE28056E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mccoy m. gibson jr. c. marshall dann
Assignee: Duphar International Research BV
•
Filing: 1972-11-15
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Granted: 1974-06-25
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Expires: 1992-11-15
Abstract
Abstract A STRETCHER HAVING AN ENDLESS BELT OF FLEXIBLE MATERIAL GUIDED BY TWO SPACED-APART PARALLEL GUIDES ON A FRAME, A SUPPORTING PLATE IS AFFIXED TO THE FRAME UNDER THE FLEXIBLE BELT. MOUNTED ON THE FRAME IS A PROPULSION MECHANISM COUPLED TO A DRIVING MECHANISM FOR DRIVING THE BELT IN A CIRCUMFERENTIAL DIRECTION IN SUCH A WAY THAT, ON MOVING THE FRAME IN THE LONGITUDINAL DIRECTION OF THE BELT WITH RESPECT TO THE GROUND, A CORRESPONDING DISPLACEMENT OF THE BELT IN THE OPPOSITE DIRECTION IS EFFECTED.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:15
CPC Classifications
A; A61; A61G; A61G1/00; A61G1/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |