US2615925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of olefinic compounds
Assignee: EIDP Inc
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Filing: 1948-04-05
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Granted: 1952-10-28
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Expires: 1968-04-05
Abstract
No abstract record available.
Inventors
- 👤 Charles A Bordner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:55
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/23; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A PROCESS FOR PRODUCING AN OLEFINICN COMPOUND CONTAINING FLUORINE WHICH COMPRISES PASSING A MIXTURE OF HYDROGEN AND VAPORS OF A SATURATED FLUOROCHLORO COMPOUND CONTAINING 2 TO 6 CARBON ATOMS, 2 TO 12 FLUORINE ATOMS AND 2 TO 12 CHLORINE ATOMS, HAVING AT LEAST ONE CHLORINE ATOM ON EACH OF TWO ADJACENT CARBON ATOMS AND AT LEAST TWO FLUORINE ATOMS ON ONE CARBON ATOM, EACH CARBON ATOM WHICH CARRIES A SINGLE FLUORINE ATOM BUT NO CHLORINE ATOM BEING BONDED TO A CARBON ATOM CARRYING AT LEAST TWO FLUORINE ATOMS, WHICH FLUOROCHLORO COMPOUND IS A MEMBER OF THE CLASS CONSISTING OF FLUOROCHLORO COMPOUNDS WHICH CONSIST OF CARBON, FLUORINE AND CHLORINE ATOMS AND FLUOROCHLORO COMPOUNDS WHICH CONSIST OF CARBON, FLUROINE, CHLORINE AND 1 TO 4 HYDROGEN ATOMS, THROUGH A METALLIC COPPER CATALYST HEATED TO A TEMPERATURE OF FROM ABOUT 360* C. TO ABOUT 700* C.
Claim 2
Dependent Claim
142 words
A PROCESS FOR PRODUCING AN OLEFINICN COMPOUND CONTAINING FLUORINE WHICH COMPRISES PASSING A MIXTURE OF HYDROGEN AND VAPORS OF A SATURATED FLUOROCHLORO COMPOUND CONTAINING 2 TO 6 CARBON ATOMS, 2 TO 12 FLUORINE ATOMS AND 2 TO 12 CHLORINE ATOMS, HAVING AT LEAST ONE CHLORINE ATOM ON EACH OF TWO ADJACENT CARBON ATOMS AND AT LEAST TWO FLUORINE ATOMS ON ONE CARBON ATOM, EACH CARBON ATOM WHICH CARRIES A SINGLE FLUORINE ATOM BUT NO CHLORINE ATOM BEING BONDED TO A CARBON ATOM CARRYING AT LEAST TWO FLUORINE ATOMS, WHICH FLUOROCHLORO COMPOUND IS A MEMBER OF THE CLASS CONSISTING OF FLUOROCHLORO COMPOUNDS WHICH CONSIST OF CARBON, FLUORINE AND CHLORINE ATOMS AND FLUOROCHLORO COMPOUNDS WHICH CONSIST OF CARBON, FLUROINE, CHLORINE AND 1 TO 4 HYDROGEN ATOMS, THROUGH A METALLIC COPPER CATALYST HEATED TO A TEMPERATURE OF FROM ABOUT 360* C. TO ABOUT 700* C.
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) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |