US2717871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical production of flucrocarbon acid fluoride derivatives
Assignee: 3M Co
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Filing: 1952-02-01
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Granted: 1955-09-13
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Expires: 1972-02-01
Abstract
No abstract record available.
Inventors
- 👤 Harold M Scholberg
- 👤 Hugh G Bryce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:39
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/27; C25B3/28; C25B3/01; C25B3/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
AN ELECTROCHEMICAL PROCESS OF MAKING FLUOROCARBON ACID FLUIDIZE DERIVATIVES BY ELECTROLYZING, IN A CELL CONTAINING AN ELECTRODE PACK HAVING A NICKEL ANODES, A CURRENTCONDUCTING SOLUTION COMPRISING ANHYDROUS LIQUID HYDROGEN FLUORIDE MIXED WITH AN APPROPRIATE ORGANIC STARTING COMPOUND, THE CELL BEING OPERATED AT AN AVERAGE TEMPERATURE WHICH IS NOT GREATLY BELOW 0* C. AND AT AN AVERAGE VOLTAGE WHICH DOES NOT EXCEED APPROXIMATELY 6 VOLTS, SUCH THAT A FLUOROCARBON ACID FLUORIDE PRODUCT IS OBTAINED IN A USEFUL YIELD, AND CONVERTING THE FLUOROCARBON ACID FLUORIDE PRODUCT TO A DERIVATIVE THEREOF WHICH IS RECOVERED, CHARACTERIZED BY ELECTROLYZING A HYDROCARBON ACID FLUORIDE STARTING COMPOUND.
Claim 2
Dependent Claim
100 words
AN ELECTROCHEMICAL PROCESS OF MAKING FLUOROCARBON ACID FLUIDIZE DERIVATIVES BY ELECTROLYZING, IN A CELL CONTAINING AN ELECTRODE PACK HAVING A NICKEL ANODES, A CURRENTCONDUCTING SOLUTION COMPRISING ANHYDROUS LIQUID HYDROGEN FLUORIDE MIXED WITH AN APPROPRIATE ORGANIC STARTING COMPOUND, THE CELL BEING OPERATED AT AN AVERAGE TEMPERATURE WHICH IS NOT GREATLY BELOW 0* C. AND AT AN AVERAGE VOLTAGE WHICH DOES NOT EXCEED APPROXIMATELY 6 VOLTS, SUCH THAT A FLUOROCARBON ACID FLUORIDE PRODUCT IS OBTAINED IN A USEFUL YIELD, AND CONVERTING THE FLUOROCARBON ACID FLUORIDE PRODUCT TO A DERIVATIVE THEREOF WHICH IS RECOVERED, CHARACTERIZED BY ELECTROLYZING A HYDROCARBON ACID FLUORIDE STARTING COMPOUND.
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) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |