Patent US2542464A successfully refreshed from Google Patents.
US2542464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic conversion
Assignee: Standard Oil Development Co
•
Filing: 1945-12-22
•
Granted: 1951-02-20
•
Expires: 1965-12-22
Abstract
No abstract record available.
Inventors
- 👤 James F Black
- 👤 Kenneth K Kearby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:23
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/043; C07C1/0435; C07C1/044; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN IMPROVED PROCESS FOR PRODUCING NORMALLY LIQUID OLEFINIC HYDROCARBONS CONTAINING NOT SUBSTANTIALLY LESS THAN 89% OF OLEFINS IN THE C4 CUT FROM CO AND H2 BY A CATALYTIC SNTHESIS REACTION, WHICH CONSISTS ESSENTIALLY IN CONTACTING A GAS CONTAINING H2 AND CO IN THE RATIO OF ABOUT 0.8 TO 1.1 AT ELEVATED SYNTHESIS PRESSURE AND AT SYNTHESIS TEMPERATURES OF ABOUT 630* TO ABOUT 660* F. WITH A CATALYST CONSISTING ESSENTIALLY OF ABOUT 99% BY WEIGHT OF A REDUCED OXIDE OF IRON AND ABOUT 1% BY WEIGHT OF POTASSIUM FLUORIDE.
Claim 2
Dependent Claim
88 words
AN IMPROVED PROCESS FOR PRODUCING NORMALLY LIQUID OLEFINIC HYDROCARBONS CONTAINING NOT SUBSTANTIALLY LESS THAN 89% OF OLEFINS IN THE C4 CUT FROM CO AND H2 BY A CATALYTIC SNTHESIS REACTION, WHICH CONSISTS ESSENTIALLY IN CONTACTING A GAS CONTAINING H2 AND CO IN THE RATIO OF ABOUT 0.8 TO 1.1 AT ELEVATED SYNTHESIS PRESSURE AND AT SYNTHESIS TEMPERATURES OF ABOUT 630* TO ABOUT 660* F. WITH A CATALYST CONSISTING ESSENTIALLY OF ABOUT 99% BY WEIGHT OF A REDUCED OXIDE OF IRON AND ABOUT 1% BY WEIGHT OF POTASSIUM FLUORIDE.
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) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |