Patent US2463447A successfully refreshed from Google Patents.
US2463447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beet harvester
Assignee: Deere and Co
•
Filing: 1944-05-10
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Granted: 1949-03-01
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Expires: 1964-05-10
Abstract
No abstract record available.
Inventors
- 👤 Claude W Walz
- 👤 Robert D Griff
- 👤 Clarence T Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:38
CPC Classifications
A; A01; A01D; A01D25/00; A01D25/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US627209A
Cited
US1714889A
Cited
US1140202A
Cited
GB225708A
Cited
US1668157A
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US1721122A
Cited
US2062711A
Cited
US2072186A
Cited
US2174310A
Cited
US2256563A
Cited
US2185350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |