US2775633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of tertiary olefins
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1953-12-10
•
Granted: 1956-12-25
•
Expires: 1973-12-10
Abstract
No abstract record available.
Inventors
- 👤 Merrell R Fenske
- 👤 Jennings H Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:08
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/17; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/904; Y10T; Y10T436/00; Y10T436/25; Y10T436/25375
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PROCESS FOR REMOVING OLEFINS OF THE CLASS CONSISTING OF ALIPHATIC AND CYCLOALIPHATIC MONO-OLEFINS AND NON-CONJUGATED DIOLEFINS FROM A MIXTURE OF HYDROCARBONS WHICH COMPRISES MIXING THE HYDROCARBON MIXTURE WITH AN EXCESS OF A PERFLUORO ORGANIC ACID TO CONVERT THE OLEFINS INTO ESTERS OF THE PERFLUOROACID, AND SEPARATING UNREACTED HYDROCARBONS FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
53 words
A PROCESS FOR REMOVING OLEFINS OF THE CLASS CONSISTING OF ALIPHATIC AND CYCLOALIPHATIC MONO-OLEFINS AND NON-CONJUGATED DIOLEFINS FROM A MIXTURE OF HYDROCARBONS WHICH COMPRISES MIXING THE HYDROCARBON MIXTURE WITH AN EXCESS OF A PERFLUORO ORGANIC ACID TO CONVERT THE OLEFINS INTO ESTERS OF THE PERFLUOROACID, AND SEPARATING UNREACTED HYDROCARBONS FROM THE REACTION MIXTURE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |