Patent US2671799A successfully refreshed from Google Patents.
US2671799A
Expired / Lapsed
US
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Perhalocarbon compounds and method of preparing them
Assignee: Individual
•
Filing: 1950-08-30
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Granted: 1954-03-09
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Expires: 1970-08-30
Abstract
No abstract record available.
Inventors
- 👤 William T Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
CPC Classifications
C; C07; C07C; C07C21/00; C07C21/02; C07C21/18; C07C17/00; C07C17/093; C07C17/20; C07C17/202; C07C17/208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A PROCESS FOR THE ALLYLIC REPLACEMENT OF AN UNSATURATED PERHALOCARBON WHICH COMPRISES: REACTING A PERHALOFLUOROALLYL HALIDE HAVING AT LEAST 3 CARBON ATOMS PER MOLECULE AND AN ALLYLIC HALOGEN ATOM SELCECTED FROM THE GROUP CONSISTING OF CHLORINE BROMINE AND IODINE WITH A METAL SALT WHICH IS CAPABLE OF RELEASING A NEGATIVE ION IN SOLUTION DIFFERENT FROM SAID ALLYLIC HALOGEN ATOM AND SELECTED FROM THE GROUP CONSISTING OF METAL ALCOHOLATES, IODIES, CYANIDES AND NITRATES IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF WATER AND A WATER-SOLUBLE COMPOUND, WHEREBY SAID ALLYLIC HALOGEN ATOM IS REPLACED WITH THE NEGATIVE ION OF THE METAL SALT TO PRODUCE A REACTION MASS COMPRISING A SUBSTITUTED PERHALOFLUOROALLYL COMPOUND CONTAINING THE NEGATIVE ION OF SAID METAL SALT; AND RECOVERING SAID PERHALOFLUOROALLYL COMPOUND FROM SAID REACTION MASS. 22. 3-CYANOPERFLUOROPROPENE-1
Claim 2
Dependent Claim
130 words
A PROCESS FOR THE ALLYLIC REPLACEMENT OF AN UNSATURATED PERHALOCARBON WHICH COMPRISES: REACTING A PERHALOFLUOROALLYL HALIDE HAVING AT LEAST 3 CARBON ATOMS PER MOLECULE AND AN ALLYLIC HALOGEN ATOM SELCECTED FROM THE GROUP CONSISTING OF CHLORINE BROMINE AND IODINE WITH A METAL SALT WHICH IS CAPABLE OF RELEASING A NEGATIVE ION IN SOLUTION DIFFERENT FROM SAID ALLYLIC HALOGEN ATOM AND SELECTED FROM THE GROUP CONSISTING OF METAL ALCOHOLATES, IODIES, CYANIDES AND NITRATES IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF WATER AND A WATER-SOLUBLE COMPOUND, WHEREBY SAID ALLYLIC HALOGEN ATOM IS REPLACED WITH THE NEGATIVE ION OF THE METAL SALT TO PRODUCE A REACTION MASS COMPRISING A SUBSTITUTED PERHALOFLUOROALLYL COMPOUND CONTAINING THE NEGATIVE ION OF SAID METAL SALT; AND RECOVERING SAID PERHALOFLUOROALLYL COMPOUND FROM SAID REACTION MASS. 22. 3-CYANOPERFLUOROPROPENE-1
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) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |