Patent US2594782A successfully refreshed from Google Patents.
Patent US2579663A successfully refreshed from Google Patents.
US2579663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of synthesizing hydrocarbons
Assignee: Gulf Research and Development Co
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Filing: 1948-12-15
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Granted: 1951-12-25
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Expires: 1968-12-15
Abstract
No abstract record available.
Inventors
- 👤 William I Gilbert
- 👤 Charles W Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:10
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/10; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745; C07C2523/75
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
A PROCESS FOR THE PRODUCTION OF NORMALLY LIQUID HYDROCARBONS WHICH COMPRISES CONTACTING A MIXTURE IN WHICH THE REACTANTS CONSIST OF CARBON MONOXIDE AND STEAM IN A MOL RATIO OF CARBON MONOXIDE TO STEAM OF ABOUT 1:1 TO ABOUT 2:1 WITH A CATALYST SELECTED FROM THE GROUP CONSISTING OF AN IRON CATALYST ABOUT 50 TO ABOUT 100 PER CENT REDUCED FROM THE OXIDE AND A COBALT CATALYST ABOUT 40 TO ABOUT 80 PER CENT REDUCED FROM THE OXIDE, AT A PRESSURE OF ABOUT 100 TO ABOUT 600 POUNDS PER SQUARE INCH, AND AT AN ELEVATED CONVERSION TEMPERATURE FROM ABOUT 500* TO ABOUT 600* F., AND RECOVERING NORMALLY LIQUID HYDROCARBONS FROM THE RESULTING REACTION PRODUCTS.
References Cited (Backward Citations)
US2213415A
Cited
US2257293A
Cited
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 |