US3515219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rod weeder
Assignee: Deere and Co
•
Filing: 1968-02-26
•
Granted: 1970-06-02
•
Expires: 1988-02-26
Abstract
No abstract record available.
Inventors
- 👤 William Wayne Jackson
- 👤 Duane Arnold Essex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:09
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/12; A01B39/18; A01B39/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US885563A
Cited
US2900031A
Cited
US3042122A
Cited
US3135337A
Cited
US3115940A
Cited
US3360053A
Cited
US3321031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |