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US2487709A
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Apparatus for sharpening implement disks
Assignee: HENRY H HODGES
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Filing: 1948-01-20
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Granted: 1949-11-08
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Expires: 1968-01-20
Abstract
No abstract record available.
Inventors
- 👤 Clarence R Hodges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:19
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/36; B24B3/46; B24B3/466; B24B3/463
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US681440A
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US727981A
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US1610768A
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US1886859A
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US1961540A
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US2244586A
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US2330510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |