US2870641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable pulleys
Assignee: Dayton Rubber Co
•
Filing: 1956-09-11
•
Granted: 1959-01-27
•
Expires: 1976-09-11
Abstract
No abstract record available.
Inventors
- 👤 Bernard R Bellmann
- 👤 Voris Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:14
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/52; F16H55/56; F16H55/566
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1116845A
Cited
GB237353A
Cited
US2054564A
Cited
US2555189A
Cited
US2618162A
Cited
US2639621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |