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US2792673A
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Tool sharpening machine
Assignee: Gleason Works
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Filing: 1955-05-12
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Granted: 1957-05-21
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Expires: 1975-05-12
Abstract
No abstract record available.
Inventors
- 👤 Earl D Dammert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:51
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/02; B24B3/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH115164A
Cited
US2224959A
Cited
US2319154A
Cited
US2354509A
Cited
US2382897A
Cited
US2713234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-20 | 1960-11-19 | 1961-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-20 | 1964-11-19 | 1965-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-20 | 1968-11-19 | 1969-05-21 | $7700.00 | Window Closed / Lapsed |