US2480429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable draw key
Assignee: Individual
•
Filing: 1946-04-27
•
Granted: 1949-08-30
•
Expires: 1966-04-27
Abstract
No abstract record available.
Inventors
- 👤 Wade Roger Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:38
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/12; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1049; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53835; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |