Patent US2855979A successfully refreshed from Google Patents.
US2855979A
Expired / Lapsed
US
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Combined invalid wheel chair and walker
Assignee: Individual
•
Filing: 1957-03-22
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Granted: 1958-10-14
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Expires: 1977-03-22
Abstract
No abstract record available.
Inventors
- 👤 William R Hubbard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:23
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/14; A61G5/1054; A61G2200/00; A61G2200/50; A61G2200/52; Y; Y10; Y10S; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US333414A
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FR598000A
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US2129260A
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US2201261A
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US2269918A
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US2433969A
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US2426451A
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US2592405A
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US2619152A
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US2649309A
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US2782870A
Cited
FR1092533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |