Patent US2787378A successfully refreshed from Google Patents.
US2787378A
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Slurry type liquid treating apparatus
Assignee: Individual
•
Filing: 1952-05-26
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Granted: 1957-04-02
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Expires: 1972-05-26
Abstract
No abstract record available.
Inventors
- 👤 Everett M Battey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:46
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5281; B; B01; B01D; B01D21/00; B01D21/0018; B01D21/003; B01D21/0039; B01D21/0042; B01D21/02; B01D21/08; B01D21/24; B01D21/2405; B01D21/2427
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US806214A
Cited
US1678788A
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US1837191A
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US2101908A
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US2245587A
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US2204093A
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US2259221A
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GB556447A
Cited
US2525842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |