Patent US2492998A successfully refreshed from Google Patents.
US2492998A
Expired / Lapsed
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Method of and apparatus for minimizing deposition of carbonaceous material
Assignee: Houdry Process Corp
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Filing: 1947-09-26
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Granted: 1950-01-03
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Expires: 1967-09-26
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Lassiat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:58
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/085; B01J8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN THE ART OF CONVERTING HYDROCARBONS IN THE PRESENCE OF CONTACT MATERIAL WHICH GRAVITATES THROUGH A REACTION ZONE WHILE HAVING CONVERSION TEMPERATURE, THE METHOD WHICH COMPRISES CAUSING ATOMIZED LIQUID HYDROCARBON MATERIAL TO PASS THROUGH A CHAMBER IN THE UPPER PORTION OF SAID REACTION ZONE AND TO BE ENGAGED WITH AT LEAST A SUBSTANTIAL PORTION OF SAID CONTACT MATERIAL, ADMITTING A STREAM OF VAPORS TO SAID CHAMBER, INCREASING THE VELOCITY OF SAID STREAM OF VAPORS TO
Claim 2
Dependent Claim
75 words
IN THE ART OF CONVERTING HYDROCARBONS IN THE PRESENCE OF CONTACT MATERIAL WHICH GRAVITATES THROUGH A REACTION ZONE WHILE HAVING CONVERSION TEMPERATURE, THE METHOD WHICH COMPRISES CAUSING ATOMIZED LIQUID HYDROCARBON MATERIAL TO PASS THROUGH A CHAMBER IN THE UPPER PORTION OF SAID REACTION ZONE AND TO BE ENGAGED WITH AT LEAST A SUBSTANTIAL PORTION OF SAID CONTACT MATERIAL, ADMITTING A STREAM OF VAPORS TO SAID CHAMBER, INCREASING THE VELOCITY OF SAID STREAM OF VAPORS TO
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |