Patent US1241017A successfully refreshed from Google Patents.
US2982718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pitch conversion
Assignee: Phillips Petroleum Co
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Filing: 1958-07-07
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Granted: 1961-05-02
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Expires: 1978-07-07
Abstract
No abstract record available.
Inventors
- 👤 George J Constantikes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:20
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A METHOD FOR CATALYTICALLY CRACKING A PULVERIZED PITCH WHICH COMPRISES SUSPENDING SAID PULVERIZED PITCH IN A COOL TRANSPORTING FLUID, TRANSPORTING THE SUSPENDED PULVERIZED PITCH TO A DISENGAGING ZONE LOCATED ABOVE A FEED RISER ZONE OF A FLUID CATALYTIC CRACKING OPERATION, DISENGAGING PULVERIZED PITCH FROM THE TRANSPORTING FLUID IN SAID DISENGAGING ZONE, PASSING THE DISENGAGED PULVERIZED PITCH AS A FREE FLOWING SOLID TO A SEAL ZONE, PASSING CONTROLLED AMOUNTS OF PULVERIZED PITCH FROM SAID SEAL ZONE TO A COOLING ZONE, THEREIN FURTHER COOLING THE PULVERIZED PITCH, PASSING COOLED PULVERIZED PITCH INTO SAID FEED RISER ZONE AND THEREIN ADMIXING SAID COOLED PULVERIZED PITCH WITH AN ADMIXTURE OF OIL, STEAM, AND CATALYST WHICH HAS JUST BEEN FORMED IN SAID FEED RISER ZONE, AND THEN CONVEYING THE WHOLE FINAL MIXTURE THUS FORMED INTO A FLUID
Claim 2
Independent Claim
131 words
A METHOD FOR CATALYTICALLY CRACKING A PULVERIZED PITCH WHICH COMPRISES SUSPENDING SAID PULVERIZED PITCH IN A COOL TRANSPORTING FLUID, TRANSPORTING THE SUSPENDED PULVERIZED PITCH TO A DISENGAGING ZONE LOCATED ABOVE A FEED RISER ZONE OF A FLUID CATALYTIC CRACKING OPERATION, DISENGAGING PULVERIZED PITCH FROM THE TRANSPORTING FLUID IN SAID DISENGAGING ZONE, PASSING THE DISENGAGED PULVERIZED PITCH AS A FREE FLOWING SOLID TO A SEAL ZONE, PASSING CONTROLLED AMOUNTS OF PULVERIZED PITCH FROM SAID SEAL ZONE TO A COOLING ZONE, THEREIN FURTHER COOLING THE PULVERIZED PITCH, PASSING COOLED PULVERIZED PITCH INTO SAID FEED RISER ZONE AND THEREIN ADMIXING SAID COOLED PULVERIZED PITCH WITH AN ADMIXTURE OF OIL, STEAM, AND CATALYST WHICH HAS JUST BEEN FORMED IN SAID FEED RISER ZONE, AND THEN CONVEYING THE WHOLE FINAL MIXTURE THUS FORMED INTO A FLUID
References Cited (Backward Citations)
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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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |