US3242059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic process for production of chlorine and caustic
Assignee: Imperial Chemical Industries Ltd
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Filing: 1961-07-11
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Granted: 1966-03-22
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Expires: 1981-07-11
Abstract
No abstract record available.
Inventors
- 👤 Cottam Ronald Geoffrey
- 👤 Edwards George Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:03
CPC Classifications
C; C01; C01D; C01D1/00; C25; C25B; C25B1/00; C25B1/01; C25B1/34; C25B1/46; C25B11/00; C25B11/02; C25B11/036; C25B9/00; C25B9/13; C25B9/15; C25B9/17; C25B9/19; C25B9/23; C25B9/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PROCESS FOR THE MANUFACTURE OF CHLORINE AND CAUSTIC WHICH COMPRISES PASSING AN ALKALI METAL CHLORIDE SOLUTION INTO AN ELECTROLYTIC CELL FROM THE ANODE SIDE, ELECTROLYZING SAID ALKALI METAL CHLORIDE SOLUTION IN SAID CELL, WITHDRAWING CAUSTIC SOLUTION FROM THE CATHODE SIDE OF SAID CELL AND WITHDRAWING CHLORINE FROMTHE ANODE SIDE OF SAID CELL, SAID CELL COMPRISING A NON-CONDUCTING POROUS DIAPHRAGM HELD BETWEEN AND IN CONTACT WITH A FORAMINOUS SHEET METAL CATHODE AND A FORAMINOUS SHEET TITANIUM ANODE SUPPORT, AND AN ANODE WHICH IS A COATING OF A PLATINUM METAL OF SAID ANODE SUPPORT.
Claim 2
Dependent Claim
93 words
A PROCESS FOR THE MANUFACTURE OF CHLORINE AND CAUSTIC WHICH COMPRISES PASSING AN ALKALI METAL CHLORIDE SOLUTION INTO AN ELECTROLYTIC CELL FROM THE ANODE SIDE, ELECTROLYZING SAID ALKALI METAL CHLORIDE SOLUTION IN SAID CELL, WITHDRAWING CAUSTIC SOLUTION FROM THE CATHODE SIDE OF SAID CELL AND WITHDRAWING CHLORINE FROMTHE ANODE SIDE OF SAID CELL, SAID CELL COMPRISING A NON-CONDUCTING POROUS DIAPHRAGM HELD BETWEEN AND IN CONTACT WITH A FORAMINOUS SHEET METAL CATHODE AND A FORAMINOUS SHEET TITANIUM ANODE SUPPORT, AND AN ANODE WHICH IS A COATING OF A PLATINUM METAL OF SAID ANODE SUPPORT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |