Patent US3640343A successfully refreshed from Google Patents.
Patent US3501724A successfully refreshed from Google Patents.
Patent US2299477A successfully refreshed from Google Patents.
Patent US2774797A successfully refreshed from Google Patents.
US2774797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing fluorohalocarbons by reacting carbon with fluorine and another halogen
Assignee: MW Kellogg Co
•
Filing: 1954-04-02
•
Granted: 1956-12-18
•
Expires: 1974-04-02
Abstract
No abstract record available.
Inventors
- 👤 Russell M Mantell
- 👤 Herbert J Passino
- 👤 Wilber O Teeters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:47
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PROCESS FOR PRODUCING LIQUID FLUOROHALOCARBONS WHICH COMPRISES REACTING ELEMENTAL FLUORIDE WITH A FLUIDIZED MASS OF FINELY DIVIDED CARBON PARTICLES IN A REACTION ZONE MAINTAINED AT A TEMPERATURE BETWEEN ABOUT 500* F. AND ABOUT 800* F. TO WHICH ZONE THERE IS CHARGED AN ELEMENTAL HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE, AND MIXTURES THEREOF SUCH THAT THE RELATIVE QUANTITIES OF REACTANTS CHARGED TO THE CONVERSION ZONE ARE BETWEEN ABOUT 0.50 AND ABOUT 20 PARTS OF FLUORINE PER PART OF HALOGEN OTHER THAN FLUORINE BY VOLUME.
Claim 2
Dependent Claim
87 words
A PROCESS FOR PRODUCING LIQUID FLUOROHALOCARBONS WHICH COMPRISES REACTING ELEMENTAL FLUORIDE WITH A FLUIDIZED MASS OF FINELY DIVIDED CARBON PARTICLES IN A REACTION ZONE MAINTAINED AT A TEMPERATURE BETWEEN ABOUT 500* F. AND ABOUT 800* F. TO WHICH ZONE THERE IS CHARGED AN ELEMENTAL HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE, AND MIXTURES THEREOF SUCH THAT THE RELATIVE QUANTITIES OF REACTANTS CHARGED TO THE CONVERSION ZONE ARE BETWEEN ABOUT 0.50 AND ABOUT 20 PARTS OF FLUORINE PER PART OF HALOGEN OTHER THAN FLUORINE BY VOLUME.
References Cited (Backward Citations)
US2684987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |