US2535183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheel dressing apparatus
Assignee: Thompson Grinder Co
•
Filing: 1946-09-07
•
Granted: 1950-12-26
•
Expires: 1966-09-07
Abstract
No abstract record available.
Inventors
- 👤 John C Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:39
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/06; B24B53/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US610712A
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US662375A
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US792110A
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US1043036A
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US1221753A
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US2080842A
Cited
US2167530A
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US2362650A
Cited
US2312117A
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US2385671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |