Patent US2475796A successfully refreshed from Google Patents.
US2475796A
Expired / Lapsed
US
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Tool grinding machine
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1946-03-08
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Granted: 1949-07-12
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Expires: 1966-03-08
Abstract
No abstract record available.
Inventors
- 👤 Stewart S Mader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:24
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/06; B24B41/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US141760A
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US467857A
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US1072629A
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US1710647A
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US1807999A
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US2144095A
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US2246023A
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US2332510A
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US2375619A
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US2365759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |