Patent US3071540A successfully refreshed from Google Patents.
US3071540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil feed system for fluid catalytic cracking unit
Assignee: MW Kellogg Co
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Filing: 1959-10-27
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Granted: 1963-01-01
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Expires: 1979-10-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Mcmahon
- 👤 Geoffrey P Jamieson
- 👤 Ozkardes Haldun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:48
CPC Classifications
B; B01; B01J; B01J4/00; B01J4/001; B01J4/002; B01J19/00; B01J19/26; B01J8/00; B01J8/18; B01J8/1818; B01J8/1827; C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD FOR INTRODUCING HIGH-BOILING HYDROCARBONS IN CONTACT WITH FINELY DIVIDED SOLID CONTACT MATERIAL WHICH COMPRISES PREHEATING A HIGH-BOILING HYDROCARBON FEED TO AN ELEVATED TEMPERATURE BUT BELOW SUBSTANTIAL VAPORIZATION OF SAID HYDROCARBON FEED, PASSING SAID HEATED HYDROCARBON THROUGH A CONFINED PASSAGEWAY PROVIDED WITH A DISCHARGE ORIFICE, SAID CONFINED PASSAGEWAY BEING SURROUNDED BY AN ANNULAR PASSAGEWAY HAVING A DISCHARGE ORIFICE ALIGNED WITH THE DISCHARGE ORIFICE OF SAID CONFINED PASSAGEWAY, PASSING A GASEOUS MATERIAL THROUGH SAID ANNULAR PASSAGEWAY FOR ADMIXTURE WITH SAID HEATED HYDROCARBON DISCHARGED FROM THE ORIFICE OF SAID CONFINED PASSAGEWAY, PASSING THE MIXTURE OF HYDROCARBON
Claim 2
Independent Claim
95 words
A METHOD FOR INTRODUCING HIGH-BOILING HYDROCARBONS IN CONTACT WITH FINELY DIVIDED SOLID CONTACT MATERIAL WHICH COMPRISES PREHEATING A HIGH-BOILING HYDROCARBON FEED TO AN ELEVATED TEMPERATURE BUT BELOW SUBSTANTIAL VAPORIZATION OF SAID HYDROCARBON FEED, PASSING SAID HEATED HYDROCARBON THROUGH A CONFINED PASSAGEWAY PROVIDED WITH A DISCHARGE ORIFICE, SAID CONFINED PASSAGEWAY BEING SURROUNDED BY AN ANNULAR PASSAGEWAY HAVING A DISCHARGE ORIFICE ALIGNED WITH THE DISCHARGE ORIFICE OF SAID CONFINED PASSAGEWAY, PASSING A GASEOUS MATERIAL THROUGH SAID ANNULAR PASSAGEWAY FOR ADMIXTURE WITH SAID HEATED HYDROCARBON DISCHARGED FROM THE ORIFICE OF SAID CONFINED PASSAGEWAY, PASSING THE MIXTURE OF HYDROCARBON
References Cited (Backward Citations)
US2044296A
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US2335188A
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US2780586A
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US2872411A
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US2904504A
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US2937988A
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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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |