Patent US2604140A successfully refreshed from Google Patents.
US2604140A
Expired / Lapsed
US
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Adjustable invalid's chair
Assignee: Individual
•
Filing: 1948-06-03
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Granted: 1952-07-22
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Expires: 1968-06-03
Abstract
No abstract record available.
Inventors
- 👤 Joyce A Bursey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:57
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/1056; A61G5/1059; A61G5/1094; A61G5/12; A61G5/125; A61G5/128; A61G2210/00; A61G2210/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US667363A
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US1085176A
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US1228618A
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US1437630A
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US1420404A
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GB324223A
Cited
US1787108A
Cited
US2074653A
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US2278890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |