US2981763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of fluorocarbons
Assignee: Honeywell International Inc
•
Filing: 1960-03-22
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Granted: 1961-04-25
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Expires: 1980-03-22
Abstract
No abstract record available.
Inventors
- 👤 Ronald H Neill
- 👤 Richard F Sweeney
- 👤 Woolf Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:20
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; C07C17/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
THE PROCESS FOR MAKING A MORE HIGHLY FLUORINATED PROPANE FROM CF3CFHCF3 WHICH COMPRISES HEATING CF3CFHCF3 STARTING MATERIAL AT TEMPERATURE SUBSTANTIALLY IN THE RANGE OF 475-700*C. AND WHILE IN THE PRESENCE OF ACTIVATED CARBON CATALYST, AND RECOVERING A MORE HIGHLY FLUORINATED PROPANE FROM THE RESULTING REACTION PRODUCT.
Claim 2
Dependent Claim
46 words
THE PROCESS FOR MAKING A MORE HIGHLY FLUORINATED PROPANE FROM CF3CFHCF3 WHICH COMPRISES HEATING CF3CFHCF3 STARTING MATERIAL AT TEMPERATURE SUBSTANTIALLY IN THE RANGE OF 475-700*C. AND WHILE IN THE PRESENCE OF ACTIVATED CARBON CATALYST, AND RECOVERING A MORE HIGHLY FLUORINATED PROPANE FROM THE RESULTING REACTION PRODUCT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |