Patent US1976298A successfully refreshed from Google Patents.
US2489453A
Expired / Lapsed
US
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Grinding machine
Assignee: Individual
•
Filing: 1947-08-04
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Granted: 1949-11-29
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Expires: 1967-08-04
Abstract
No abstract record available.
Inventors
- 👤 Fouquet Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:28
CPC Classifications
B; B24; B24B; B24B27/00; B24B27/0076; B24B27/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US820801A
Cited
US1214098A
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GB191322196A
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DE393054C
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US1664823A
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GB382408A
Cited
US2113287A
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US2269697A
Cited
US2296064A
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US2388172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |