US2517141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrolytic conversion of hydrocarbons
Assignee: Sinclair Refining Co
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Filing: 1947-04-29
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Granted: 1950-08-01
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Expires: 1967-04-29
Abstract
No abstract record available.
Inventors
- 👤 Smith Reading Barlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:30
CPC Classifications
C; C10; C10G; C10G15/00; C10G15/08; B; B01; B01J; B01J19/00; B01J19/08; B01J19/10; B01J8/00; B01J8/16; C10G11/00; C10G11/14; C10G11/18; Y; Y10; Y10S; Y10S159/00; Y10S159/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN A FLUID CATALYST PROCESS FOR THE CONVERSION OF HYDROCARBONS IN WHICH HYDROCARBON VAPORS AT AN ELEVATED TEMPERATURE ARE INTIMATELY CONTACTED WITH A FINELY DIVIDED CATALYST IN A REACTION ZONE, CONVERTED HYDROCARBON VAPORS CARRYING RESIDUAL CATALYST FINES IN SUSPENSION PASS FROM THE REACTION ZONE AND ARE FRACTIONATED, THE STEP OF RECOVERING THE RESIDUAL CATALYST FINES WHICH COMPRISES SUBJECTING THE VAPOR SUSPEN-
Claim 2
Dependent Claim
61 words
IN A FLUID CATALYST PROCESS FOR THE CONVERSION OF HYDROCARBONS IN WHICH HYDROCARBON VAPORS AT AN ELEVATED TEMPERATURE ARE INTIMATELY CONTACTED WITH A FINELY DIVIDED CATALYST IN A REACTION ZONE, CONVERTED HYDROCARBON VAPORS CARRYING RESIDUAL CATALYST FINES IN SUSPENSION PASS FROM THE REACTION ZONE AND ARE FRACTIONATED, THE STEP OF RECOVERING THE RESIDUAL CATALYST FINES WHICH COMPRISES SUBJECTING THE VAPOR SUSPEN-
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) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |