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US945979A
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Grinding-machine.
Assignee: Norton Grinding Co
•
Filing: 1909-01-04
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Granted: 1910-01-11
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Expires: 1929-01-04
Abstract
No abstract record available.
Inventors
- 👤 Charles H Norton
- 👤 John C Spence
- 👤 Hiram N Cudworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:28
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/36; B24B5/42; Y; Y10; Y10T; Y10T82/00; Y10T82/19; Y10T82/25; Y10T82/2568; Y10T82/2571; Y10T82/2572; Y10T82/2574
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) | 1913-01-10 | 1913-07-12 | 1914-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-01-10 | 1917-07-12 | 1918-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-01-10 | 1921-07-12 | 1922-01-11 | $7700.00 | Window Closed / Lapsed |