US3479894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt tensioning device
Assignee: Deere and Co
•
Filing: 1968-02-28
•
Granted: 1969-11-25
•
Expires: 1988-02-28
Abstract
No abstract record available.
Inventors
- 👤 Harold Eugene Debuhr
- 👤 Larry Wilson Cofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:15
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/08; F16H7/10; F16H7/12; F16H7/1254; F16H7/1281; F16H2007/0802; F16H2007/0806; F16H2007/0876; F16H2007/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US315202A
Cited
US1744746A
Cited
US2343084A
Cited
US2663195A
Cited
US2806382A
Cited
US2876549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |