US2709373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable diameter sheaves
Assignee: AMERICAN PULLEY Co
•
Filing: 1952-09-10
•
Granted: 1955-05-31
•
Expires: 1972-09-10
Abstract
No abstract record available.
Inventors
- 👤 John T Barron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:23
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/04; F16H63/06; F16H63/067; Y; Y10; Y10T; Y10T403/00; Y10T403/16; Y10T403/1633; Y10T403/70; Y10T403/7018; Y10T403/7021; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7056; Y10T403/7058
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2495078A
Cited
US2610515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |