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US999610A
Expired / Lapsed
US
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Grinding and sharpening machine.
Assignee: D M WOLF
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Filing: 1911-04-27
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Granted: 1911-08-01
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Expires: 1931-04-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Virdin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:24
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/08; B24B19/12; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1914-07-31 | 1915-01-30 | 1915-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-07-31 | 1919-01-30 | 1919-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-07-31 | 1923-01-30 | 1923-08-01 | $7700.00 | Window Closed / Lapsed |