US2979445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for converting cis-ethylenic compounds to their trans-isomers
Assignee: California Research LLC
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Filing: 1957-02-11
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Granted: 1961-04-11
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Expires: 1977-02-11
Abstract
No abstract record available.
Inventors
- 👤 Joe B Lavigne
- 👤 Irving E Levine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:25
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/02; C07C57/13; C07C57/15; B; B01; B01J; B01J19/00; B01J19/08; B01J19/087; B01J19/088; C07C51/00; C07C51/347; C07C51/353; C07C51/42; C07C51/487; C07C57/03; Y; Y10; Y10S; Y10S204/00; Y10S204/90; Y10S204/902; Y10S204/903; Y10S204/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR THE CONVERSION OF CIS-ETHYLENIC COMPOUNDS TO THE CORRESPONDING TRANS-ISOMERS THEREOF, WHICH COMPRISES SUBJECTING A CIS-ETHYLENIC COMPOUND AT SUBSTANTIALLY ATMOSPHERIC TEMPERATURES AND PRESSURES TO IONIZING RADIATION HAVING AN ENERGY FROM ABOUT 0.001 MEV. TO ABOUT 20.0 MEV. FOR A PERIOD OF TIME SUFFICIENT TO IMPART A TOTAL RADIATION DOSE OF FROM 0.001 TO 25.0 MEGAREPS IN THE PRESENCE OF A CATALYST CAPABLE OF INITIATING A CHAIN REACTION UNDER THE INFLUENCE OF SAID IONIZING RADIATION.
Claim 2
Dependent Claim
76 words
A PROCESS FOR THE CONVERSION OF CIS-ETHYLENIC COMPOUNDS TO THE CORRESPONDING TRANS-ISOMERS THEREOF, WHICH COMPRISES SUBJECTING A CIS-ETHYLENIC COMPOUND AT SUBSTANTIALLY ATMOSPHERIC TEMPERATURES AND PRESSURES TO IONIZING RADIATION HAVING AN ENERGY FROM ABOUT 0.001 MEV. TO ABOUT 20.0 MEV. FOR A PERIOD OF TIME SUFFICIENT TO IMPART A TOTAL RADIATION DOSE OF FROM 0.001 TO 25.0 MEGAREPS IN THE PRESENCE OF A CATALYST CAPABLE OF INITIATING A CHAIN REACTION UNDER THE INFLUENCE OF SAID IONIZING RADIATION.
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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |