Patent US2589845A successfully refreshed from Google Patents.
US2589845A
Expired / Lapsed
US
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Hammer knife mower
Assignee: International Motors LLC
•
Filing: 1947-08-16
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Granted: 1952-03-18
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Expires: 1967-08-16
Abstract
No abstract record available.
Inventors
- 👤 Carl W Mott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:30
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/43; A01D34/435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1326256A
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US1372339A
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US1688119A
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US2120671A
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US2214498A
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US2260668A
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US2285306A
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US2341486A
Cited
US2422044A
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US2475671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |