Patent US3452529A successfully refreshed from Google Patents.
US3452529A
Expired / Lapsed
US
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Wheel rake
Assignee: Deere and Co
•
Filing: 1966-05-19
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Granted: 1969-07-01
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Expires: 1986-05-19
Abstract
No abstract record available.
Inventors
- 👤 Gordon Halstead Millar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:53
CPC Classifications
A; A01; A01D; A01D78/00; A01D78/08; A01D78/14; A01D78/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1221053A
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US1336031A
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US1289517A
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US1295316A
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US1443478A
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US2945339A
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US2972852A
Cited
US2844935A
Cited
US3006132A
Cited
US3221822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |