US3480384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective removal of oxygen from a hydrogen-ethylene stream
Assignee: Universal Oil Products Co
•
Filing: 1966-03-14
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Granted: 1969-11-25
•
Expires: 1986-03-14
Abstract
No abstract record available.
Inventors
- 👤 Leslie C Hardison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:26
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A METHOD FOR CONVERTING AND REMOVING A LOW OXYGEN CONTENT FROM A PROCESS STREAM CONTAINING AT LEAST 20% OF BOTH HYDROGEN AND ETHYLENE TO SUBSTANTIALLY PRECLUDE ETHYLENE CONVERSION, WHICH COMPRISES, PASSING SUCH STREAM INTO CONTACT WITH AN ACTIVE OXIDATION CATALYST COMPRISING A NOBLE METAL AT A TEMPERATURE ABOVE ABOUT 650* F. AND WITH SULPHUR ADDED IN AN AMOUNT FROM ABOUT 1 TO ABOUT 15 GRAINS PER 100 STANDARD CUBIC FEET THEREOF.
Claim 2
Independent Claim
71 words
A METHOD FOR CONVERTING AND REMOVING A LOW OXYGEN CONTENT FROM A PROCESS STREAM CONTAINING AT LEAST 20% OF BOTH HYDROGEN AND ETHYLENE TO SUBSTANTIALLY PRECLUDE ETHYLENE CONVERSION, WHICH COMPRISES, PASSING SUCH STREAM INTO CONTACT WITH AN ACTIVE OXIDATION CATALYST COMPRISING A NOBLE METAL AT A TEMPERATURE ABOVE ABOUT 650* F. AND WITH SULPHUR ADDED IN AN AMOUNT FROM ABOUT 1 TO ABOUT 15 GRAINS PER 100 STANDARD CUBIC FEET THEREOF.
References Cited (Backward Citations)
US3084023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |