US3047075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Offset disk harrows
Assignee: Deere and Co
•
Filing: 1958-10-01
•
Granted: 1962-07-31
•
Expires: 1978-10-01
Abstract
No abstract record available.
Inventors
- 👤 William R Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:49
CPC Classifications
A; A01; A01B; A01B21/00; A01B21/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US455709A
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US487622A
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US928088A
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US1059141A
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US1827125A
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US1775269A
Cited
US1998501A
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US2204684A
Cited
US2404252A
Cited
US2607177A
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US2685159A
Cited
US2784657A
Cited
US2970657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |