US2420645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sickle grinder
Assignee: Individual
•
Filing: 1943-07-13
•
Granted: 1947-05-20
•
Expires: 1963-07-13
Abstract
No abstract record available.
Inventors
- 👤 Earl C Beeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:52
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/55
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US105802A
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US583443A
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US674468A
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US1602097A
Cited
CH144927A
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FR755824A
Cited
US2051071A
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US2188616A
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US2307826A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-19 | 1950-11-18 | 1951-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-19 | 1954-11-18 | 1955-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-19 | 1958-11-18 | 1959-05-20 | $7700.00 | Window Closed / Lapsed |