US2727346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable tension hitch for agricultural implement
Assignee: COBEY CORP
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Filing: 1952-11-13
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Granted: 1955-12-20
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Expires: 1972-11-13
Abstract
No abstract record available.
Inventors
- 👤 Wallace J Witwer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:15
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/04; A01B59/042; A01D; A01D76/00; A01D76/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |