US2673221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing ethyl alcohol by hydration of ethylene
Assignee: Eastman Kodak Co
•
Filing: 1952-01-18
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Granted: 1954-03-23
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Expires: 1972-01-18
Abstract
No abstract record available.
Inventors
- 👤 Robert J Schrader
- 👤 Howard S Young
- 👤 Harry I Berntsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:26
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/03; C07C29/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A CYCLIC PROCESS FOR THE MANUFACTURE OF ETHYL ALCOHOL BY THE REACTION OF ETHYLENE AND STEAM IN CONTACT WITH A HYDRATION CATALYST, AT ELEVATED TEMPERATURE AND PRESSURE, IN THE PRESENCE OF CONSIDERABLE PROPORTIONS OF INERT GASEOUS IMPURITIES IN THE RECYCLING GAS STREAM, WHICH COMPRISES HOLDING THE FREE OXYGEN CONTENT OF THE GASES COMING IN CONTACT WITH THE CATALYST AT A VALUE NOT EXCEEDING ABOUT 0.2%.
Claim 2
Dependent Claim
65 words
A CYCLIC PROCESS FOR THE MANUFACTURE OF ETHYL ALCOHOL BY THE REACTION OF ETHYLENE AND STEAM IN CONTACT WITH A HYDRATION CATALYST, AT ELEVATED TEMPERATURE AND PRESSURE, IN THE PRESENCE OF CONSIDERABLE PROPORTIONS OF INERT GASEOUS IMPURITIES IN THE RECYCLING GAS STREAM, WHICH COMPRISES HOLDING THE FREE OXYGEN CONTENT OF THE GASES COMING IN CONTACT WITH THE CATALYST AT A VALUE NOT EXCEEDING ABOUT 0.2%.
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) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |