Patent US2772670A successfully refreshed from Google Patents.
US2772670A
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Grinding wheel truing mechanism
Assignee: GOULD ENGINEERING AND SALES CO
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Filing: 1954-04-19
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Granted: 1956-12-04
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Expires: 1974-04-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles H Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:10
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/06; B24B53/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189910011A
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US1250359A
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US1841852A
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GB406838A
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US2109454A
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US2346528A
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US2332013A
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US2469844A
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US2581980A
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US2665680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |