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Patent US3039703A successfully refreshed from Google Patents.
US3039703A
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Method and apparatus for reducing particle size
Assignee: Mineral Industries Corp of America
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Filing: 1958-12-24
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Granted: 1962-06-19
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Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 Morris I Cohn
- 👤 Roy D Perdue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:10
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/10; B24B31/116; B02; B02C; B02C19/00; B02C19/0012; B02C19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US251803A
Cited
US1363572A
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US1690668A
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US1654268A
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US1987944A
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US2164409A
Cited
US2387548A
Cited
US2672882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |