Patent US3424910A successfully refreshed from Google Patents.
Patent US2734874A successfully refreshed from Google Patents.
US2734874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of catalysts of vanadium
Assignee: —
•
Filing: —
•
Granted: 1956-02-14
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Expires: 1973-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:20
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/20; B01J23/22; B01J23/24; B01J23/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A METHOD FOR PREPARING A CATALYST, WHICH COMPRISES ADSORBING ON A POROUS CARRIED AT A TEMPERATURE RANGING FROM AMBIENT TEMPERATURE UP TO ABOUT 1000* F., BUT BELOW THE DECOMPOSITION TEMPERATURE, A SUFFICIENT QUANTITY OF A METAL ACETYLACET ONATE FROM A NON-AQUEOUS MEDIUM TO FURNISH, UPON SUBSEQUENT DECOMPOSITION THEREOF, A CATALYTICALLY ACTIVE AMOUNT OF A METAL OXIDE DEPOSITED ON SAID CARRIER AND THEREAFTER HEATING THE CARRIER WITH ABSORBED METAL ACETYLACETONATE FOR A SUFFICIENT TIME AND AT A SUFFICIENT TEMPERATURE TO CONVERT SAID ABSORBED METAL ACETYLACETONE TO A DEPOSIT OF METAL OXIDE ON SAID CARRIER.
Claim 2
Independent Claim
93 words
A METHOD FOR PREPARING A CATALYST, WHICH COMPRISES ADSORBING ON A POROUS CARRIED AT A TEMPERATURE RANGING FROM AMBIENT TEMPERATURE UP TO ABOUT 1000* F., BUT BELOW THE DECOMPOSITION TEMPERATURE, A SUFFICIENT QUANTITY OF A METAL ACETYLACET ONATE FROM A NON-AQUEOUS MEDIUM TO FURNISH, UPON SUBSEQUENT DECOMPOSITION THEREOF, A CATALYTICALLY ACTIVE AMOUNT OF A METAL OXIDE DEPOSITED ON SAID CARRIER AND THEREAFTER HEATING THE CARRIER WITH ABSORBED METAL ACETYLACETONATE FOR A SUFFICIENT TIME AND AT A SUFFICIENT TEMPERATURE TO CONVERT SAID ABSORBED METAL ACETYLACETONE TO A DEPOSIT OF METAL OXIDE ON SAID CARRIER.
References Cited (Backward Citations)
US1558162A
Cited
US1789538A
Cited
US1895522A
Cited
US1876270A
Cited
US2328158A
Cited
US2470166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-13 | 1959-08-15 | 1960-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-13 | 1963-08-15 | 1964-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-13 | 1967-08-15 | 1968-02-14 | $7700.00 | Window Closed / Lapsed |