US2459641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for dressing the grinding wheel of an internal grinder
Assignee: SUPERIOR MACHINE AND ENGINEERI
•
Filing: 1945-06-13
•
Granted: 1949-01-18
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Expires: 1965-06-13
Abstract
No abstract record available.
Inventors
- 👤 Hallead Mervil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:28
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1751202A
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US1751203A
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US1731719A
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US1779094A
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US1804414A
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US1826070A
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US1882814A
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US1964433A
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US1994386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |