US2474722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable walking aid
Assignee: Individual
•
Filing: 1946-02-14
•
Granted: 1949-06-28
•
Expires: 1966-02-14
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Blume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:51
CPC Classifications
A; A45; A45B; A45B19/00; A45B19/04; A45B9/00; A61; A61H; A61H3/00; A61H3/02; A45B2009/005; A45B2009/007; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32442; Y10T403/32451; Y10T403/32459; Y10T403/59; Y10T403/591; Y10T403/592; Y10T403/598; Y10T403/599
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US885339A
Cited
US1035760A
Cited
US1073991A
Cited
US1505081A
Cited
US1720593A
Cited
US2146495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |