Patent US2665743A successfully refreshed from Google Patents.
US2665743A
Expired / Lapsed
US
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Folding wheel chair
Assignee: VERSAL Inc
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Filing: 1950-09-30
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Granted: 1954-01-12
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Expires: 1970-09-30
Abstract
No abstract record available.
Inventors
- 👤 Dale L Cosper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:02
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/08; A61G5/0808; A61G5/0816; A61G5/0825; A61G5/0891; A61G5/10; A61G5/12; A61G5/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US606691A
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US1381136A
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US1898448A
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CH177913A
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GB494282A
Cited
US2379566A
Cited
US2402085A
Cited
US2522729A
Cited
US2485016A
Cited
US2460459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |