Patent US2641362A successfully refreshed from Google Patents.
US2641362A
Expired / Lapsed
US
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Apparatus for separating mixed materials
Assignee: HYDROTATOR Co
•
Filing: 1950-01-04
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Granted: 1953-06-09
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Expires: 1970-01-04
Abstract
No abstract record available.
Inventors
- 👤 Walter L Remick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:55
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/24; B03D1/1443; B03D1/1462; B03D1/1493
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1240824A
Cited
US1346286A
Cited
US1767400A
Cited
US1888131A
Cited
US1973714A
Cited
US2176107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |