Patent US4829558A successfully refreshed from Google Patents.
Patent US3406772A successfully refreshed from Google Patents.
US3406772A
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US
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Wheel type chair-beds for invalids and patients
Assignee: REDEV AB
•
Filing: 1966-08-24
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Granted: 1968-10-22
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Expires: 1986-08-24
Abstract
No abstract record available.
Inventors
- 👤 Ahrent Gustav Adolf
- 👤 Tell Karl Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:02
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/06; A61G5/061; A61G5/006; A61G5/066; A61G5/10; A61G5/1002; A61G5/1056; A61G5/1059; A61G5/12; A61G5/128; A61G5/14; A61G7/00; A61G7/002; Y; Y10; Y10S; Y10S297/00; Y10S297/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1739260A
Cited
US2322683A
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US2694437A
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US3112001A
Cited
US3215469A
Cited
US3276531A
Cited
US3147039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |