Patent US2828583A successfully refreshed from Google Patents.
US2828583A
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US
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Tool sharpening machine and method
Assignee: Gleason Works
•
Filing: 1954-07-12
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Granted: 1958-04-01
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Expires: 1974-07-12
Abstract
No abstract record available.
Inventors
- 👤 Leonard O Carlsen
- 👤 Robert F Pigage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:20
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/02; B24B3/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR453772A
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US1187753A
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US1431024A
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US1621553A
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US1830971A
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US1698909A
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US2224959A
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US2195065A
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US2272974A
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US2436466A
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US2471443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |