US2866835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin separation and recovery
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-08-30
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Granted: 1958-12-30
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Expires: 1976-08-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Newton Kimberlin
- 👤 Mattox William Judson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:35
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/02; C10G25/03; C07; C07C; C07C7/00; C07C7/12; C07C7/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
AN IMPROVED PROCESS FOR SEPARATING STRAIGHT CHAIN OLEFINS FROM STRAIGHT CHAIN PARAFFINS WHICH COMPRISES PASSING A VAPORIZED STREAM OF HYDROCARBONS COMPRISING N-PARAFFINS AND N-OLEFINS INTO A MOLECULAR SIEVE ZEOLITE ADSORPTION ZONE, MAINTAINING A TEMPERATURE OF FROM ABOUT 175* TO 450*F. IN SAID ZONE, WITHDRAWING UNADSORBED HYDROCARBONS INCLUDING CIS N-OLEFINS WHILE ADSORBING N-PARAFFINS AND TRANS N-OLEFINS, PASSING A NORMALLY GASEOUS OLEFIN
Claim 2
Dependent Claim
60 words
AN IMPROVED PROCESS FOR SEPARATING STRAIGHT CHAIN OLEFINS FROM STRAIGHT CHAIN PARAFFINS WHICH COMPRISES PASSING A VAPORIZED STREAM OF HYDROCARBONS COMPRISING N-PARAFFINS AND N-OLEFINS INTO A MOLECULAR SIEVE ZEOLITE ADSORPTION ZONE, MAINTAINING A TEMPERATURE OF FROM ABOUT 175* TO 450*F. IN SAID ZONE, WITHDRAWING UNADSORBED HYDROCARBONS INCLUDING CIS N-OLEFINS WHILE ADSORBING N-PARAFFINS AND TRANS N-OLEFINS, PASSING A NORMALLY GASEOUS OLEFIN
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) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |