US2591911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair for handicapped persons
Assignee: Individual
•
Filing: 1946-09-19
•
Granted: 1952-04-08
•
Expires: 1966-09-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Block
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:44
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/027; A47C7/00; A47C7/50; A47C7/506
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US123122A
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US343216A
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US1231917A
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US1437782A
Cited
US1411236A
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US1748784A
Cited
US2107404A
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US2201261A
Cited
US2269918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |