US2617660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawbar stay for tractors
Assignee: Individual
•
Filing: 1950-06-08
•
Granted: 1952-11-11
•
Expires: 1970-06-08
Abstract
No abstract record available.
Inventors
- 👤 Hadlock Lester Elliot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:08
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/04; A01B59/041; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32442; Y10T403/32451; Y10T403/32459
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US300116A
Cited
US464319A
Cited
US783773A
Cited
US1343279A
Cited
US1783189A
Cited
US2376716A
Cited
US2461885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |