US3017335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic production of fluorocarbons and metallic sodium
Assignee: EIDP Inc
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Filing: 1958-02-25
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Granted: 1962-01-16
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Expires: 1978-02-25
Abstract
No abstract record available.
Inventors
- 👤 Jr William R Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:04
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/02; C25B; C25B3/00; C25B3/01; C25B3/11; C25B3/20; C25B3/27; C25B3/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
THE PROCESS OF SIMULTANEOUSLY PRODUCING FLUOROCARBONS FROM A CARBON ANODE AND METALLIC SODIUM WHICH COMPRISES ELECTROLYZING, WITH DIRECT CURRENT AT A VOLTAGE OF LESS THAN 30 VOLTS BETWEEN AN INSOLUBLE CATHODE AND AN ANODE MADE OF CHEMICALLY UNCOMBINED CARBON, AN MOLTEN ELECTROYTE COMPRISING ABOUT 40-70% BY WEIGHT OF SODIUM FLUORIDE, ABOUT 20-40% BY WEIGHT OF CALCIUM FLUORIDE AND ABOUT 10-30% BY WEIGHT OF MAGNESIUM FLUORIDE, THE THREE NAMED METAL FLUORIDES CONSTITUING AT LEAST ABOUT 95% BY WEIGHT OF THE ELECTROLYTE, ANY REMAINDER THEREOF CONSISTING ESSENTIALLY OF THE FLUORIDE OF A DIFFERENT METAL, THE TEMPERATURE OF SAID MOLTEN ELECTROYTE BEING NOT ABOVE ABOUT 900*C. AND THE ANODE CURRENT DENSITY BEING AT LEAST ABOUT ONE AMPERE PER SQUARE DECIMETER.
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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |