Patent US4603316A successfully refreshed from Google Patents.
US2681884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brine electrolysis
Assignee: Diamond Shamrock Corp
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Filing: 1950-02-03
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Granted: 1954-06-22
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Expires: 1970-02-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Clarence A Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:19
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/34; C25B1/46; Y; Y10; Y10S; Y10S204/00; Y10S204/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE METHOD OF ELECTROLYZING AN AQUEOUS ALKALI METAL CHLORIDE SOLUTION, WHICH INCLUDES THE STEPS OF PASSING AN ELECTRIC CURRENT THROUGH SUCH SOLUTION BETWEEN AN ANODE, A DIAPHRAGM, A DIAPHRAGM-CATHODE SPACER PROVIDING A CATHOLYTE FLOW PASSAGE, AND AN ELECTROLYTE-SOLUTION-REPELLENT OXYGEN-ACTIVATING, OXYGEN-CONTAINING, UNSUBMERGED CATHODE, THEREBY REACTING OXYGEN ACTIVATED IN SAID CATHODE WITH WATER AT SAID CATHODE TO PRODUCE HYDROXYL IONS AT SAID CATHODE, CONTINUOUSLY FLOWING CATHOLYTE DOWNWARDLY ALONG THE CATHOLYTE CONTACTING PORTION OF SAID CATHODE THROUGH SAID SPACER, AND CONTINUOUSLY REPLENISHING THE OXYGEN SUPPLY IN SAID CATHODE.
Claim 2
Independent Claim
85 words
THE METHOD OF ELECTROLYZING AN AQUEOUS ALKALI METAL CHLORIDE SOLUTION, WHICH INCLUDES THE STEPS OF PASSING AN ELECTRIC CURRENT THROUGH SUCH SOLUTION BETWEEN AN ANODE, A DIAPHRAGM, A DIAPHRAGM-CATHODE SPACER PROVIDING A CATHOLYTE FLOW PASSAGE, AND AN ELECTROLYTE-SOLUTION-REPELLENT OXYGEN-ACTIVATING, OXYGEN-CONTAINING, UNSUBMERGED CATHODE, THEREBY REACTING OXYGEN ACTIVATED IN SAID CATHODE WITH WATER AT SAID CATHODE TO PRODUCE HYDROXYL IONS AT SAID CATHODE, CONTINUOUSLY FLOWING CATHOLYTE DOWNWARDLY ALONG THE CATHOLYTE CONTACTING PORTION OF SAID CATHODE THROUGH SAID SPACER, AND CONTINUOUSLY REPLENISHING THE OXYGEN SUPPLY IN SAID CATHODE.
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) | 1957-06-21 | 1957-12-21 | 1958-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-21 | 1961-12-21 | 1962-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-21 | 1965-12-21 | 1966-06-22 | $7700.00 | Window Closed / Lapsed |