US2850549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of cis and trans isomers
Assignee: Phillips Petroleum Co
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Filing: 1956-02-06
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Granted: 1958-09-02
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Expires: 1976-02-06
Abstract
No abstract record available.
Inventors
- 👤 Gardner C Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:15
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; C07C7/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD FOR THE SEPARATION OF THE COMPONENTS OF A PAIR OF CIS AND TRANS ISOMERS CONTAINING THE SAME NUMBER OF CARBON ATOMS PER MOLECULAR AND SELECTED FROM THE PAIRS OF CIS AND TRANS I SOSMERS SOF STRAIGHT CHAIN MONOOLEFINIC HYDROCARBONS HAVING LIKE NUMBERS OF CARBON ATOMS PER MOLECULE, AND SAID PAIRS OF ISOMERS CONTAINING 4, 5 AND 6 CARBON ATOMS PER MOLECULE OF ISOMER,S COMPRISING TREATING SAID PAIR OF CIS AND TRANS ISOMERS WITH AN ADSORBENT SYNTHETIC CHABAZITE, AND DESORBING THE CIS ISOMER FROM THE SYNTHETIC CHABAZITE.
Claim 2
Independent Claim
88 words
A METHOD FOR THE SEPARATION OF THE COMPONENTS OF A PAIR OF CIS AND TRANS ISOMERS CONTAINING THE SAME NUMBER OF CARBON ATOMS PER MOLECULAR AND SELECTED FROM THE PAIRS OF CIS AND TRANS I SOSMERS SOF STRAIGHT CHAIN MONOOLEFINIC HYDROCARBONS HAVING LIKE NUMBERS OF CARBON ATOMS PER MOLECULE, AND SAID PAIRS OF ISOMERS CONTAINING 4, 5 AND 6 CARBON ATOMS PER MOLECULE OF ISOMER,S COMPRISING TREATING SAID PAIR OF CIS AND TRANS ISOMERS WITH AN ADSORBENT SYNTHETIC CHABAZITE, AND DESORBING THE CIS ISOMER FROM THE SYNTHETIC CHABAZITE.
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) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |