US2604146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible footrest attachment for chairs
Assignee: Individual
•
Filing: 1949-09-15
•
Granted: 1952-07-22
•
Expires: 1969-09-15
Abstract
No abstract record available.
Inventors
- 👤 Jay R Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:19
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/50; A47C7/506; A47C7/5062; A47C7/5064
Claims Analysis
Total Claims: 0
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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 |