Patent US3083055A successfully refreshed from Google Patents.
US3083055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patient chair
Assignee: Individual
•
Filing: 1961-03-23
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Granted: 1963-03-26
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Expires: 1981-03-23
Abstract
No abstract record available.
Inventors
- 👤 Charles S Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:45
CPC Classifications
A; A61; A61G; A61G15/00; A61G15/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
A PATIENT CHAIR COMPRISING: A BASE PLATE FOR FLOOR ENGAGEMENT; A SEAT FRAME; PARALLELOGRAM LINKAGE MEANS CONNECTING SAID SEAT FRAME TO SAID BASE PLATE; ACTUATING MEANS MOUNTED ON SAID BASE PLATE AND CONNECTED TO SAID PARALLELOGRAM LINKAGE MEANS FOR RAISING AND LOWERING SAID SEAT FRAME; A SEAT MOUNTED ON SAID FRAME; AND AN EXTENDABLE BACK REST INCLUDING AN OUTER SUPPORT FRAME ROTATABLY JOURNALED AT ITS ENDS TO SAID SEAT FRAME, AN INNER SUPPORT FRAME DIMENSIONED FOR LOWERING INTO SAID OUTER SUPPORT FRAME, TELESCOPING MEANS FOR CONNECTING SAID INNER TO SAID OUTER SUPPORT FRAME, A PAD DETACHABLY AFFIXED TO SAID INNER SUPPORT FRAME, AND ADJUSTABLE CLAMPING MEANS TO SECURE SAID INNER SUPPORT FRAME IN A POSITION OF EXTENSION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |