US2580002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of ethylene
Assignee: Standard Oil Development Co
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Filing: 1949-12-24
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Granted: 1951-12-25
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Expires: 1969-12-24
Abstract
No abstract record available.
Inventors
- 👤 Carrier E Wendell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:38
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/02; C07C11/04; C07C4/00; C07C4/02; C07C4/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS FOR THE PRODUCTION OF ETHYLENE WHICH COMPRISES THERMALLY CRACKING A GASEOUS HYDROCARBON MIXTURE CONTAINING ETHYLENE, PROPYLENE AND A MAJOR PORTION OF PROPANE UNDER A PRESSURE OF AT LEAST TWO ATMOSPHERES, REDUCING THE PRESSURE OF THE RESULTING HYDROGEN-CONTAINING THERMALLY CRACKED PRODUCTS OT ABOUT ATMOSPHERIC PRESSURE AND DISCHARGING THE HOT THERMALLY CRACKED GASES INTO A SOAKING ZONE CHARGED WITH A HYDROGENATION CATALYST CONTAINING AN OXIDE OF A 6TH GROUP METAL, MAINTAINING THE THERMALLY CRACKED GASES IN THE SOAKING ZONE UNTIL THE CONCENTRATION OF ETHYLENE IN THE C2 FRACTION OF THE CRACKED GAS IS SUBSTANTIALLY IN-
Claim 2
Dependent Claim
95 words
A PROCESS FOR THE PRODUCTION OF ETHYLENE WHICH COMPRISES THERMALLY CRACKING A GASEOUS HYDROCARBON MIXTURE CONTAINING ETHYLENE, PROPYLENE AND A MAJOR PORTION OF PROPANE UNDER A PRESSURE OF AT LEAST TWO ATMOSPHERES, REDUCING THE PRESSURE OF THE RESULTING HYDROGEN-CONTAINING THERMALLY CRACKED PRODUCTS OT ABOUT ATMOSPHERIC PRESSURE AND DISCHARGING THE HOT THERMALLY CRACKED GASES INTO A SOAKING ZONE CHARGED WITH A HYDROGENATION CATALYST CONTAINING AN OXIDE OF A 6TH GROUP METAL, MAINTAINING THE THERMALLY CRACKED GASES IN THE SOAKING ZONE UNTIL THE CONCENTRATION OF ETHYLENE IN THE C2 FRACTION OF THE CRACKED GAS IS SUBSTANTIALLY IN-
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) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |