US2550593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair for use of invalids and aged persons
Assignee: Individual
•
Filing: 1945-12-13
•
Granted: 1951-04-24
•
Expires: 1965-12-13
Abstract
No abstract record available.
Inventors
- 👤 Perry Wesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:22
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/14; Y; Y10; Y10S; Y10S297/00; Y10S297/04; Y10S297/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US25116A
Cited
US696722A
Cited
US1288216A
Cited
US1428462A
Cited
FR553132A
Cited
FR705693A
Cited
US1925425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |