US2630128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescoping and adjustable crutch
Assignee: Individual
•
Filing: 1950-02-18
•
Granted: 1953-03-03
•
Expires: 1970-02-18
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:26
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/02; A61H2201/00; A61H2201/01; A61H2201/0188; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32442; Y10T403/32451; Y10T403/32459; Y10T403/59; Y10T403/598; Y10T403/599
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US866361A
Cited
US885339A
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US987497A
Cited
GB122694A
Cited
US1652110A
Cited
US1795268A
Cited
US2116730A
Cited
US2245349A
Cited
US2383786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |