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US3391663A
Expired / Lapsed
US
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Hitch structure
Assignee: Case LLC
•
Filing: 1965-04-22
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Granted: 1968-07-09
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Expires: 1985-04-22
Abstract
No abstract record available.
Inventors
- 👤 Wesley J Cagle
- 👤 Irvin R Cuthbertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:26
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/04; A01B59/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1106028A
Cited
GB426440A
Cited
US2062282A
Cited
US2678222A
Cited
US2719369A
Cited
US3194322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |