Patent US4143588A successfully refreshed from Google Patents.
Patent US3249530A successfully refreshed from Google Patents.
US3249530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrorefining of petroleum crude oil
Assignee: Universal Oil Products Co
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Filing: 1963-08-19
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Granted: 1966-05-03
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 John G Gatsis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:01
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/14; C10G45/16; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PROCESS FOR HYDROREFINING A HYDROCARBON CHARGE STOCK WHICH COMPRISES ADMIXING SAID CHARGE STOCK WITH AT LEAST ONE HETEROPOLY ACID CONTAINING A METAL OF GROUP VI-B HAVING AN ATOMIC NUMBER GREATER THAN 24, HEATING THE RESULTING MIXTURE AT A TEMPERATURE LESS THAN ABOUT 310*C. AND FOR A TIME SUFFICIENT TO FORM A COLLOIDAL DISPERSION OF SAID HETEROPOLY ACID, COMMINGLING IODINE WITH THE COLLODAL DISPERSION, REACTING TH RESULTANT MIXTURE WITH HYDROGEN AT A TEMPERATURE IN EXCESS OF ABOUT 225*C. AND AT A PRESSURE GREATER THAN ABOUT 500 P.S.I.G., AND RECOVERING A HYDROREFINED LIQUID PRODUCT.
Claim 2
Dependent Claim
93 words
A PROCESS FOR HYDROREFINING A HYDROCARBON CHARGE STOCK WHICH COMPRISES ADMIXING SAID CHARGE STOCK WITH AT LEAST ONE HETEROPOLY ACID CONTAINING A METAL OF GROUP VI-B HAVING AN ATOMIC NUMBER GREATER THAN 24, HEATING THE RESULTING MIXTURE AT A TEMPERATURE LESS THAN ABOUT 310*C. AND FOR A TIME SUFFICIENT TO FORM A COLLOIDAL DISPERSION OF SAID HETEROPOLY ACID, COMMINGLING IODINE WITH THE COLLODAL DISPERSION, REACTING TH RESULTANT MIXTURE WITH HYDROGEN AT A TEMPERATURE IN EXCESS OF ABOUT 225*C. AND AT A PRESSURE GREATER THAN ABOUT 500 P.S.I.G., AND RECOVERING A HYDROREFINED LIQUID PRODUCT.
References Cited (Backward Citations)
US3165463A
Cited
US3166494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |