US3047641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of chlorofluropropane
Assignee: Honeywell International Inc
•
Filing: 1960-03-22
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Granted: 1962-07-31
•
Expires: 1980-03-22
Abstract
No abstract record available.
Inventors
- 👤 Ronald H Neill
- 👤 Woolf Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:57
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/013; C07C17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE PROCESS FOR MAKING 2-CHLOROHEPTAFLUOROPROPANE IN A GAS-PHASE REACTION WHICH PROCESS COMPRISES SUBJECTING VAPOR-PHASE 3-CHLOROPENTAFLUOROPROPENE-1 TO THE ACTION OF SUBSTANTIALLY ANHYDROUS HF, IN AMOUNT SUFFICIENT TO REACT WITH A SUBSTANTIAL QUANTITY OF SAID 3-CHLOROPENTAFLUOROPROPENE-1, WHILE MAINTAINING TEMPERATURE SUBSTANTIALLY IN THE RANGE OF 475-625* C. AND WHILE IN THE PRESENCE OF ACTIVATED CARBON CATALYST, AND RECOVERING 2-CHLOROHEPTAFLUOROPROPANE FROM THE RESULTING REACTION PRODUCTS.
Claim 2
Dependent Claim
61 words
THE PROCESS FOR MAKING 2-CHLOROHEPTAFLUOROPROPANE IN A GAS-PHASE REACTION WHICH PROCESS COMPRISES SUBJECTING VAPOR-PHASE 3-CHLOROPENTAFLUOROPROPENE-1 TO THE ACTION OF SUBSTANTIALLY ANHYDROUS HF, IN AMOUNT SUFFICIENT TO REACT WITH A SUBSTANTIAL QUANTITY OF SAID 3-CHLOROPENTAFLUOROPROPENE-1, WHILE MAINTAINING TEMPERATURE SUBSTANTIALLY IN THE RANGE OF 475-625* C. AND WHILE IN THE PRESENCE OF ACTIVATED CARBON CATALYST, AND RECOVERING 2-CHLOROHEPTAFLUOROPROPANE FROM THE RESULTING REACTION PRODUCTS.
References Cited (Backward Citations)
US2005706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |