Patent US3375725A successfully refreshed from Google Patents.
US3375725A
Expired / Lapsed
US
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Rotatable cylinder and pulley devices
Assignee: Individual
•
Filing: 1965-11-22
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Granted: 1968-04-02
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Expires: 1985-11-22
Abstract
No abstract record available.
Inventors
- 👤 Robert V Mathison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:17
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/36; F16H55/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US26707A
Cited
US361573A
Cited
US377161A
Cited
US444447A
Cited
US969438A
Cited
GB191110566A
Cited
US1810636A
Cited
US2117195A
Cited
FR1122573A
Cited
US2941410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |