US3068950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable motor-driven invalid chair with endless tracks
Assignee: Individual
•
Filing: 1961-10-10
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Granted: 1962-12-18
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Expires: 1981-10-10
Abstract
No abstract record available.
Inventors
- 👤 Isaac F Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:19
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/06; A61G5/061; A61G5/066; A61G5/10; A61G5/1056; A61G5/107; B; B62; B62B; B62B9/00; B62B9/02; B62D; B62D55/00; B62D55/06; B62D55/075; B62B2301/00; B62B2301/25; B62B2301/256; Y; Y10; Y10S; Y10S180/00; Y10S180/907; Y10S280/00; Y10S280/10
Claims Analysis
Total Claims: 0
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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) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |