Patent US3630876A successfully refreshed from Google Patents.
US3630876A
Expired / Lapsed
US
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Mercury separation in mercury process electrolytic apparatus
Assignee: Kureha Corp
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Filing: 1967-12-18
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Granted: 1971-12-28
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Expires: 1987-12-18
Abstract
Abstract A BAFFLE PLATE WITH AN OUTLET OPENING BELOW IS LOWER EDGE FORMS A PARTIAL SIDE WALL OF PASSAGEWAY THROUGH WHICH MERCURY OR MERCURY AMALGAM FLOWS TOGETHER WITH CONTAMINANTS AND A SOLUTION FLOATING ABOVE IT IN A MERCURY PROCESS APPARATUS AND ONLY THE MERCURY OR AMALGAM IS PERMITTED TO PASS UNDER AND PAST THE BAFFLE INTO ANOTHER PASSAGEWAY PARALLEL TO THE FIRST PASSAGEWAY, THEREBY BEING SEPARATED FROM THECONTAMINANTS AND SOLUTION, WHICH ARE BLOCKED BY THE BAFFLE. THE BAFFLE ALONG THE SIDE WALL AFFORDS THOROUGH SEPARATION WITHOUT MIXING DUE TO TURBULENCE OF CONTAMINANTS AND SOLUTION WITH SEPARATED MERCURY OR AMALGAM.
Inventors
- 👤 Hiroshi Shibata
- 👤 Teruo Imai
- 👤 Shigeji Kumaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:46
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02; C25B11/033; C25B1/00; C25B1/01; C25B1/34; C25B1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |