US2787646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic halogen compounds and methods of making same
Assignee: Individual
•
Filing: 1954-09-02
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Granted: 1957-04-02
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Expires: 1974-09-02
Abstract
No abstract record available.
Inventors
- 👤 Haszeldine Robert Neville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:03
CPC Classifications
C; C07; C07C; C07C21/00; C07C21/02; C07C21/18; C07C17/00; C07C17/093; C07C17/20; C07C17/202; C07C17/208; C07C21/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS WHICH COMPRISES TREATING A COMPOUND OF THE FORMULA CMZ2CX=CH2 IN WHICH M IS SELECTED FROM THE GROUP CONSISTTING OF CHLORINE AND BROMINE, Z IS SELECTED FROM THE GROUP CONSISTING OF FLUORINE, CHLORINE AND BROMINE, AND X IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, CHLORINE AND BROMINE; WITH AN ACID-FREE, ANHYDROUS FLUORINATING AGENT SELECTED FROM THE GROUP CONSISTING OF ANTIMONY TRIFLUORIDE, ANTIMONY TRIFLUORODICHLORIDE AND ANTIMONY TRIFLUORODIBROMIDE, AT A TEMPERATURE BELOW THAT AT WHICH REARRANGEMENT OF THE STARTING MATERIAL WOULD OCCUR IN THE ABSENCE OF SAID FLUORINATING AGENT, TO PRODUCE A COMPOUND OF THE FORMULA CF3CXI IN WHICH X IS AS GIVEN ABOVE.
Claim 2
Dependent Claim
104 words
A PROCESS WHICH COMPRISES TREATING A COMPOUND OF THE FORMULA CMZ2CX=CH2 IN WHICH M IS SELECTED FROM THE GROUP CONSISTTING OF CHLORINE AND BROMINE, Z IS SELECTED FROM THE GROUP CONSISTING OF FLUORINE, CHLORINE AND BROMINE, AND X IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, CHLORINE AND BROMINE; WITH AN ACID-FREE, ANHYDROUS FLUORINATING AGENT SELECTED FROM THE GROUP CONSISTING OF ANTIMONY TRIFLUORIDE, ANTIMONY TRIFLUORODICHLORIDE AND ANTIMONY TRIFLUORODIBROMIDE, AT A TEMPERATURE BELOW THAT AT WHICH REARRANGEMENT OF THE STARTING MATERIAL WOULD OCCUR IN THE ABSENCE OF SAID FLUORINATING AGENT, TO PRODUCE A COMPOUND OF THE FORMULA CF3CXI IN WHICH X IS AS GIVEN ABOVE.
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) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |