Patent US2897539A successfully refreshed from Google Patents.
US3102085A
Expired / Lapsed
US
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Treatment of brine solutions
Assignee: Imperial Chemical Industries Ltd
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Filing: 1959-06-18
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Granted: 1963-08-27
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Expires: 1979-06-18
Abstract
No abstract record available.
Inventors
- 👤 Edwards George Ernest
- 👤 Lepage Norman James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:47
CPC Classifications
C; C25; C25B; C25B9/00; C01; C01B; C01B7/00; C01B7/01; C01D; C01D3/00; C01D3/14; C25B1/00; C25B1/01; C25B1/24; C25B1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PROCESS FOR THE PURIFICATION OF BRINE CONTAINING FREE AND AVAILABLE CHLORINE AND FOR THE RECOVERY OF SAID CHLORINE WHICH COMPRISES THE STEPS OF FLOWING SAID BRINE THROUGH A CATHODE COMPARTMENT OF AN ELECTROLYTIC DIAPHRAGM CELL HAVING AN ANODE WHIHC IS SUBSTANTIALLY UNATTACKED BY CHLORINE AND CHLORINATED BRINE AND A CATHODE WHICH IS SUBTANTIALLY UNATTACKED BY CHLORINATED BRINE, APPLYING TO SAID ELECTRODES AN ELECTROMOTIVE FORCE SUFFICIENT TO CAUSE CURRENT TO PASS BETWEEN THE ANODE AND THE CATHODE, THEREBY ELECTROLYTICALLY CONVERTING FREE AND AVAILABLE CHLORINE IN SAID BRINE TO THE IONIC STATE AT THE
Claim 2
Dependent Claim
93 words
A PROCESS FOR THE PURIFICATION OF BRINE CONTAINING FREE AND AVAILABLE CHLORINE AND FOR THE RECOVERY OF SAID CHLORINE WHICH COMPRISES THE STEPS OF FLOWING SAID BRINE THROUGH A CATHODE COMPARTMENT OF AN ELECTROLYTIC DIAPHRAGM CELL HAVING AN ANODE WHIHC IS SUBSTANTIALLY UNATTACKED BY CHLORINE AND CHLORINATED BRINE AND A CATHODE WHICH IS SUBTANTIALLY UNATTACKED BY CHLORINATED BRINE, APPLYING TO SAID ELECTRODES AN ELECTROMOTIVE FORCE SUFFICIENT TO CAUSE CURRENT TO PASS BETWEEN THE ANODE AND THE CATHODE, THEREBY ELECTROLYTICALLY CONVERTING FREE AND AVAILABLE CHLORINE IN SAID BRINE TO THE IONIC STATE AT THE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |