US2593098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic peroxides as promoters for silver oxidation catalysts and process using the same
Assignee: Ethyl Corp
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Filing: 1950-12-09
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Granted: 1952-04-15
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Expires: 1970-12-09
Abstract
No abstract record available.
Inventors
- 👤 William E Burt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:31
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/48; B01J23/50; C; C07; C07D; C07D301/00; C07D301/02; C07D301/03; C07D301/04; C07D301/08; C07D301/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
31 words
AN OXIDATION CATALYST CONSISTING ESSENTIALLY OF FROM 4 PER CENT TO 50 PER CENT SILVER, A SUPPORT THEREFOR, AND FROM 0.5 PER CENT TO 4 PER CENT OF AN ORGANIC PEROXIDE.
Claim 2
Dependent Claim
31 words
AN OXIDATION CATALYST CONSISTING ESSENTIALLY OF FROM 4 PER CENT TO 50 PER CENT SILVER, A SUPPORT THEREFOR, AND FROM 0.5 PER CENT TO 4 PER CENT OF AN ORGANIC PEROXIDE.
Claim 3
Dependent Claim
31 words
A PROCESS FOR PRODUCING ETHYLENE OXIDE COMPRISING REACTING ETHYLENE WITH OXYGEN IN THE PRESENCE OF THE CATALYST OF CLAIM 1, SAID PROCESS CONDUCTED AT A TEMPERATURE BETWEEN 150 AND 400* C.
References Cited (Backward Citations)
US2194602A
Cited
US2491057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |