US987589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding-machine for sharpening edged tools.
Assignee: Mummert Wolf & Dixon Co
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Filing: 1908-10-16
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Granted: 1911-03-21
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Expires: 1928-10-16
Abstract
No abstract record available.
Inventors
- 👤 Ervin S Mummert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:54
CPC Classifications
B; B24; B24B; B24B27/00; B24B27/0076; Y; Y10; Y10S; Y10S29/00; Y10S29/09; Y10S451/00; Y10S451/911; Y10T; Y10T74/00; Y10T74/21; Y10T74/219; Y10T74/2191
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) | 1914-03-20 | 1914-09-19 | 1915-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-03-20 | 1918-09-19 | 1919-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-03-20 | 1922-09-19 | 1923-03-21 | $7700.00 | Window Closed / Lapsed |