US2660271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor hitch
Assignee: MIDLAND CO
•
Filing: 1948-07-29
•
Granted: 1953-11-24
•
Expires: 1968-07-29
Abstract
No abstract record available.
Inventors
- 👤 Hupp Arleigh Glynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:56
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/48; B60D1/52; Y; Y10; Y10T; Y10T403/00; Y10T403/36; Y10T403/364; Y10T403/71; Y10T403/7152
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US867162A
Cited
US1389697A
Cited
US1378793A
Cited
US1505318A
Cited
US2368290A
Cited
US2489274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |