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Patent US879423A successfully refreshed from Google Patents.
US879423A
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US
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Mechanical feeder.
Assignee: Sturtevant Mill Co
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Filing: 1907-10-08
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Granted: 1908-02-18
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Expires: 1927-10-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas Leggett Sturtevant
- 👤 Thomas Joseph Sturtevant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:10
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/06; B02C18/14; B02C18/148; Y; Y10; Y10S; Y10S119/00; Y10S119/902
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) | 1911-02-17 | 1911-08-19 | 1912-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-02-17 | 1915-08-19 | 1916-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-02-17 | 1919-08-19 | 1920-02-18 | $7700.00 | Window Closed / Lapsed |