US2977326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Activated refractory inorganic oxide
Assignee: Universal Oil Products Co
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Filing: 1958-12-15
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Granted: 1961-03-28
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Expires: 1978-12-15
Abstract
No abstract record available.
Inventors
- 👤 William G Nixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:39
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/20; B01J21/00; B01J21/02; B01J21/04; B01J23/00; B01J23/38; B01J23/40; B01J23/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
40 words
A METHOD FOR ACTIVATING AN ADSORPTIVE REFRACTORY INORGANIC OXIDE WHICH COMPRISES CONTACTING SAID REFRACTORY INORGANIC OXIDE, AT A TEMPERATURE IN EXCESS OF 100*C., WITH SUFFICIENT SULFUR TRIOXIDE IN A NON-REDUCING ATMOSPHERE TO INCREASE THE ADSORPTIVE CAPACITY OF THE REFRACTORY OXIDE.
Claim 2
Independent Claim
40 words
A METHOD FOR ACTIVATING AN ADSORPTIVE REFRACTORY INORGANIC OXIDE WHICH COMPRISES CONTACTING SAID REFRACTORY INORGANIC OXIDE, AT A TEMPERATURE IN EXCESS OF 100*C., WITH SUFFICIENT SULFUR TRIOXIDE IN A NON-REDUCING ATMOSPHERE TO INCREASE THE ADSORPTIVE CAPACITY OF THE REFRACTORY OXIDE.
Claim 3
Independent Claim
72 words
A METHOD FOR MANUFACTURING A CATALYST CONSISTING ESSENTIALLY OF A MAJOR PORTION OF A REFRACTORY INORGANIC OXIDE AND A MINOR PORTION OF AT LEAST ONE CATALYTICALLY ACTIVE METAL COMPONENT, WHICH METHOD COMPRISES PREPARING AN ADSORPTIVE REFRACTORY INORGANIC OXIDE, CONTACTING SAID REFRACTORY INORGANIC OXIDE AT ABOUT 100*-500*C. WITH SUFFICIENT SULFUR TRIOXIDE IN A NON-REDUCING ATMOSPHERE TO INCREASE THE ADSORPTIVE CAPACITY OF THE REFRACTORY OXIDE AND THEREAFTER COMPOSITING SAID CATALYTICALLY ACTIVE METAL COMPONENT THEREWITH.
Claim 4
Independent Claim
72 words
A METHOD FOR MANUFACTURING A CATALYST CONSISTING ESSENTIALLY OF A MAJOR PORTION OF A REFRACTORY INORGANIC OXIDE AND A MINOR PORTION OF AT LEAST ONE CATALYTICALLY ACTIVE METAL COMPONENT, WHICH METHOD COMPRISES PREPARING AN ADSORPTIVE REFRACTORY INORGANIC OXIDE, CONTACTING SAID REFRACTORY INORGANIC OXIDE AT ABOUT 100*-500*C. WITH SUFFICIENT SULFUR TRIOXIDE IN A NON-REDUCING ATMOSPHERE TO INCREASE THE ADSORPTIVE CAPACITY OF THE REFRACTORY OXIDE AND THEREAFTER COMPOSITING SAID CATALYTICALLY ACTIVE METAL COMPONENT THEREWITH.
References Cited (Backward Citations)
US2590124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |