US2651209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable diameter sheave
Assignee: AMERICAN PULLEY Co
•
Filing: 1950-11-16
•
Granted: 1953-09-08
•
Expires: 1970-11-16
Abstract
No abstract record available.
Inventors
- 👤 William A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:26
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/52; F16H55/56; F16H55/566; Y; Y10; Y10S; Y10S116/00; Y10S116/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2407032A
Cited
US929762A
Cited
US1116845A
Cited
US2172230A
Cited
GB512568A
Cited
US2289965A
Cited
US2254380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |