US2685384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planter attachment for tractors
Assignee: Allis Chalmers Corp
•
Filing: 1948-12-18
•
Granted: 1954-08-03
•
Expires: 1968-12-18
Abstract
No abstract record available.
Inventors
- 👤 Willard H Tanke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:37
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/08; Y; Y10; Y10S; Y10S111/00; Y10S111/927
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |