Patent US6115373A successfully refreshed from Google Patents.
Patent US2888144A successfully refreshed from Google Patents.
US2888144A
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US
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Apparatus for separating solids from liquids
Assignee: Individual
•
Filing: 1955-02-28
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Granted: 1959-05-26
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Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 Ellwood H Aldrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:49
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0012; B01D21/02; B01D21/04; B01D21/06; B01D21/18; B01D21/20; B01D21/24; B01D21/2405; B01D21/2416; B01D21/2427; B01D21/245; B01D21/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190625116A
Cited
US864308A
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US1356608A
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USRE20761E
Cited
US1882546A
Cited
GB361680A
Cited
US2036809A
Cited
US2185785A
Cited
US2169442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |