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Patent US3271300A successfully refreshed from Google Patents.
US3271300A
Expired / Lapsed
US
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Silica-alumina-magnesia-magnesium fluoride catalyst and process
Assignee: WR Grace and Co
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Filing: 1964-05-11
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Granted: 1966-09-06
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Richard W Baker
- 👤 James J Blazek
- 👤 Frank G Ciapetta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:46
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; B; B01; B01J; B01J21/00; B01J21/12; B01J21/14; C10G11/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A PROCESS FOR CRACKING HEAVY PETROLEUM FRACTIONS TO PRODUCE AN INCREASED PROPORTION OF HIGH OCTANE GASOLINE AND LIGHT FUEL OILS WITH A MINIMUM PRODUCTION OF COKE WHICH COMPRISES CONTACTING SAID FRACTION AT TEMPERATURES ABOVE ABOUT 800*F. WITH A SILICA-ALUMINAMAGNESIA-MAGNESIUM FLUORIDE CRACKING CATALYST CONTAINING FROM ABOUT 0.2 TO 57.0% ALUMINA FROM ABOUT 28.3 TO .4% MAGNESIA, AND FROM ABOUT 14.0 TI .1% MAGNESIUM FLUORIDE, THE BALANCE OF THE CATALYST COMPOSITION BEING ESSENTIALLY SILICA.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |