US2687075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cultivator attachment
Assignee: MIDLAND CO
•
Filing: 1949-08-25
•
Granted: 1954-08-24
•
Expires: 1969-08-25
Abstract
No abstract record available.
Inventors
- 👤 Hupp Arieigh Glynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:59
CPC Classifications
A; A01; A01B; A01B35/00; A01B35/02; A01B35/10; A01B35/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US351357A
Cited
US676005A
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US701950A
Cited
US2141805A
Cited
US2164550A
Cited
US2330283A
Cited
US2430223A
Cited
US2525023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |