US3020085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable tray for wheelchair
Assignee: Individual
•
Filing: 1960-06-10
•
Granted: 1962-02-06
•
Expires: 1980-06-10
Abstract
No abstract record available.
Inventors
- 👤 William H Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:56
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/1094
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US781090A
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US1254103A
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US1478780A
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GB176989A
Cited
US2491465A
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US2633899A
Cited
US2555130A
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US2688358A
Cited
US2937694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |