US2996127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic tractor and implement attaching structure
Assignee: Individual
•
Filing: 1957-10-15
•
Granted: 1961-08-15
•
Expires: 1977-10-15
Abstract
No abstract record available.
Inventors
- 👤 Dunn Samuel Dow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:12
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/06; A01B59/061; A01B59/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2602389A
Cited
DE907002C
Cited
US2645073A
Cited
US2777376A
Cited
US2701510A
Cited
FR1080152A
Cited
US2776613A
Cited
US2897904A
Cited
US2762282A
Cited
US2753192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |