Patent US2507461A successfully refreshed from Google Patents.
US2507461A
Expired / Lapsed
US
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Separation of solids in a medium
Assignee: Individual
•
Filing: 1945-01-29
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Granted: 1950-05-09
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Expires: 1965-01-29
Abstract
No abstract record available.
Inventors
- 👤 Claude B Schneible
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:13
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D45/00; B01D45/04; B01D45/08; B01D45/12; B01D45/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US10696A
Cited
US419316A
Cited
US845044A
Cited
US911802A
Cited
GB257121A
Cited
US1899794A
Cited
US1928702A
Cited
US2368263A
Cited
US2367906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |