US2691053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of 1, 1, 1-trifluoro-2, 2, 2-trichloroethane
Assignee: Honeywell International Inc
•
Filing: 1951-10-17
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Granted: 1954-10-05
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Expires: 1971-10-17
Abstract
No abstract record available.
Inventors
- 👤 Woolf Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:46
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/20; C07C17/202; C07C17/206; C07C17/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
THE PROCESS FOR MAKING CCL2CF3 WHICH COMPRISES HEATIANG A COMPLETELY CHLOROFLUORO HALOGENATED ETHANE CONTAINING NOT LESS THAN FOUR CHLORINE ATOMS TO TEMPERATURE IN THE RANGE OF 250*-600* C. WHILE IN THE PRESENCE OF LITHIUM FLUORIDE-ACTIVATED CARBON CATALYST.
Claim 2
Dependent Claim
37 words
THE PROCESS FOR MAKING CCL2CF3 WHICH COMPRISES HEATIANG A COMPLETELY CHLOROFLUORO HALOGENATED ETHANE CONTAINING NOT LESS THAN FOUR CHLORINE ATOMS TO TEMPERATURE IN THE RANGE OF 250*-600* C. WHILE IN THE PRESENCE OF LITHIUM FLUORIDE-ACTIVATED CARBON CATALYST.
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) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |