US2579337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for edge grinding plates
Assignee: Sun Tool and Machine Co
•
Filing: 1949-04-13
•
Granted: 1951-12-18
•
Expires: 1969-04-13
Abstract
No abstract record available.
Inventors
- 👤 William A Reaser
- 👤 Elmer A Ziems
- 👤 John M Christman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
B; B24; B24B; B24B9/00; B24B9/02; B24B9/06; B24B9/08; B24B9/10; B24B9/105; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2554; Y10T82/2556
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1256746A
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US1778977A
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US1716115A
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US1862379A
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US2028718A
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US2010922A
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US2091456A
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US2315104A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |