Patent US2534941A successfully refreshed from Google Patents.
US2534941A
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US
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Method and apparatus for grinding
Assignee: Thompson Grinder Co
•
Filing: 1948-01-16
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Granted: 1950-12-19
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Expires: 1968-01-16
Abstract
No abstract record available.
Inventors
- 👤 William G Baldenhofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:27
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/02; B24B27/00; B24B27/0069; B24B27/06; Y; Y10; Y10S; Y10S29/00; Y10S29/091
Claims Analysis
Total Claims: 0
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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) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |