US2689434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine with crush wheel dressing mechanism
Assignee: Bryant Grinder Corp
•
Filing: 1951-10-05
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Granted: 1954-09-21
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Expires: 1971-10-05
Abstract
No abstract record available.
Inventors
- 👤 Paul A Grobey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:18
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/06; B24B53/07; B24B53/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1309443A
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US1902779A
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GB517824A
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US2252762A
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GB542918A
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US2417707A
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US2385644A
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US2446105A
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US2473670A
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US2554166A
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US2569573A
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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) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |