US2693496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective removal of acetylene from ethylene-containing gases
Assignee: Phillips Petroleum Co
•
Filing: 1951-12-21
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Granted: 1954-11-02
•
Expires: 1971-12-21
Abstract
No abstract record available.
Inventors
- 👤 Jr E O Box
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:38
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/188; C07C7/177
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
THE REMOVAL OF ACETYLENE FROM AN ETHYLENE-CONTAINING GAS ALSO CONTAINING ACETYLENE BY PASSING SAID GAS INTO CONTACT WITH A CATALYST COMPRISING CHROMIUM OXIDE AND CALCIUM NICKEL PHOSPHATE AT A TEMPERATURE IN THE RANGE 300-425* C.
Claim 2
Dependent Claim
35 words
THE REMOVAL OF ACETYLENE FROM AN ETHYLENE-CONTAINING GAS ALSO CONTAINING ACETYLENE BY PASSING SAID GAS INTO CONTACT WITH A CATALYST COMPRISING CHROMIUM OXIDE AND CALCIUM NICKEL PHOSPHATE AT A TEMPERATURE IN THE RANGE 300-425* C.
References Cited (Backward Citations)
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US2154676A
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US2456367A
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US2440236A
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US2636911A
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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) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |