US2612988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain-tightening means with ratchet lock
Assignee: Deere Manufacturing Co
•
Filing: 1950-01-14
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Granted: 1952-10-07
•
Expires: 1970-01-14
Abstract
No abstract record available.
Inventors
- 👤 Norman F Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:27
CPC Classifications
A; A01; A01D; A01D45/00; A01D45/02; A01D45/021; A01D45/023; F; F16; F16H; F16H7/00; F16H7/08; F16H7/10; F16H7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US829091A
Cited
US1405885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |