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US2428415A
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Adjustable colloid mill
Assignee: EPPENBACH
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Filing: 1944-03-01
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Granted: 1947-10-07
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Expires: 1964-03-01
Abstract
No abstract record available.
Inventors
- 👤 Edwin G Eppenbach
- 👤 Imshaug Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:25
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2090578A
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US2212544A
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US2231421A
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US2296564A
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US2297637A
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US2321599A
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US2335002A
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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) | 1950-10-06 | 1951-04-07 | 1951-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-06 | 1955-04-07 | 1955-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-06 | 1959-04-07 | 1959-10-07 | $7700.00 | Window Closed / Lapsed |