US2551573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrolysis of chloro-fluoro alkanes
Assignee: EIDP Inc
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Filing: 1945-11-30
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Granted: 1951-05-08
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Expires: 1965-11-30
Abstract
No abstract record available.
Inventors
- 👤 Frederick B Downing
- 👤 Anthony F Benning
- 👤 Robert C Mcharness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:14
CPC Classifications
C; C07; C07C; C07C23/00; C07C23/02; C07C23/06; C07C17/00; C07C17/25; C07C17/26; C07C17/263; C07C17/269; C07C17/361; C07C17/37; C07C19/00; C07C19/08; C07C19/10; C07C19/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
THE PROCESS OF CONVERTING FLUORO-CHLOROALKANES TO DIFFERENT FLUORINE CONTAINING ORGANIC COMPOUNDS WHICH COMPRISES PYROLYZING A FLUOROCHLORO-ALKANE OF FROM 1 TO 3 CARBON ATOMS CONTAINING AT LEAST ONE HYDROGEN ATOM AND IN WHICH EACH CARBON CARRYING A FLOURINE ATOM ALSO CARRIES AT LEAST ONE ADDITIONAL HALOGEN ATOM OF THE GROUP CONSISTING OF CHLORINE AND FLUORINE, AT A TEMPERATURE BETWEEN 600* C. AND 1000* C.
Claim 2
Dependent Claim
63 words
THE PROCESS OF CONVERTING FLUORO-CHLOROALKANES TO DIFFERENT FLUORINE CONTAINING ORGANIC COMPOUNDS WHICH COMPRISES PYROLYZING A FLUOROCHLORO-ALKANE OF FROM 1 TO 3 CARBON ATOMS CONTAINING AT LEAST ONE HYDROGEN ATOM AND IN WHICH EACH CARBON CARRYING A FLOURINE ATOM ALSO CARRIES AT LEAST ONE ADDITIONAL HALOGEN ATOM OF THE GROUP CONSISTING OF CHLORINE AND FLUORINE, AT A TEMPERATURE BETWEEN 600* C. AND 1000* 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) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |