Patent US2746527A successfully refreshed from Google Patents.
US2746527A
Expired / Lapsed
US
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Leg supporting attachment for invalid chairs
Assignee: GENDRON WHEEL CO
•
Filing: 1953-06-23
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Granted: 1956-05-22
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Expires: 1973-06-23
Abstract
No abstract record available.
Inventors
- 👤 John C Liebich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:55
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/12; A61G5/1054; A61G5/125; A61G5/128; Y; Y10; Y10S; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US15390A
Cited
US148343A
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US334772A
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US342772A
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US531330A
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US1310581A
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US684937A
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US801398A
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US938697A
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US2283600A
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US2601379A
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US2633896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |