US2769016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic process of oxidizing ethylene to ethylene oxide with ozone or hydrogen peroxide as carbon dioxide repressants
Assignee: Jefferson Chemical Co Inc
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Filing: 1953-05-14
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Granted: 1956-10-30
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Expires: 1973-05-14
Abstract
No abstract record available.
Inventors
- 👤 Lichtenwalter Myrl
- 👤 Edward S Peterson
- 👤 Donald K Sacken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:19
CPC Classifications
C; C07; C07D; C07D301/00; C07D301/02; C07D301/03; C07D301/04; C07D301/08; C07D301/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN THE PRODUCTION OF ETHYLENE OXIDE BY THE CATALYTIC OXIDATION OF ETHYLENE WITH AN OXYGEN-CONTAINING GAS IN THE PRESENCE OF A SILVER CATALYST AT A TEMPERATURE OF FROM 200* TO 400* C., THE IMPROVEMENT WHICH COMPRISES PASSING UP TO ABOUT 0.1% BY VOLUME OF A MATERAL FROM THE GROUP CONSISTING OF OZONE AND HYDROGEN PEROXIDE OVER THE CATALYST ALONG WITH THE REACTANTS IN AMOUNT TO EFFECT AN IMPROVEMENT IN THE YIELD OF ETHYLENE OXIDE.
Claim 2
Dependent Claim
74 words
IN THE PRODUCTION OF ETHYLENE OXIDE BY THE CATALYTIC OXIDATION OF ETHYLENE WITH AN OXYGEN-CONTAINING GAS IN THE PRESENCE OF A SILVER CATALYST AT A TEMPERATURE OF FROM 200* TO 400* C., THE IMPROVEMENT WHICH COMPRISES PASSING UP TO ABOUT 0.1% BY VOLUME OF A MATERAL FROM THE GROUP CONSISTING OF OZONE AND HYDROGEN PEROXIDE OVER THE CATALYST ALONG WITH THE REACTANTS IN AMOUNT TO EFFECT AN IMPROVEMENT IN THE YIELD OF ETHYLENE OXIDE.
References Cited (Backward Citations)
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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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |