Patent US3092457A successfully refreshed from Google Patents.
US3092457A
Expired / Lapsed
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Method for preparing high surface area titania
Assignee: Standard Oil Co
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Filing: 1960-11-04
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Granted: 1963-06-04
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Expires: 1980-11-04
Abstract
No abstract record available.
Inventors
- 👤 James W Sprague
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:26
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/06; B01J21/063; C; C01; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/053; C01P; C01P2006/00; C01P2006/10; C01P2006/12; C01P2006/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD FOR PREPARING A HIGH SURFACE AREA PURE TITANIA GEL COMPRISING THE STEP OF ACETOYLZING A TITANIC ACID ESTER HAVING AN ALKYL CHAIN OF 1 TO 4 CARBON ATOMS WITH 1 TO 8 MOLS OF GLACIAL ACETIC ACID PER MOLE OF ESTER, HYDROLYZING THE RESULTING PRODUCT WITH WATER AT A TEMPERATURE SO AS TO OBTAIN A FINAL MIXTURE IN THE RANGE OF 5* TO 25*C., DRYING THE GEL, AND CALCINING THE DRY GEL IN AIR AT 950* TO 1250*F., AND THEN COOLING THE SAME.
Claim 2
Independent Claim
85 words
A METHOD FOR PREPARING A HIGH SURFACE AREA PURE TITANIA GEL COMPRISING THE STEP OF ACETOYLZING A TITANIC ACID ESTER HAVING AN ALKYL CHAIN OF 1 TO 4 CARBON ATOMS WITH 1 TO 8 MOLS OF GLACIAL ACETIC ACID PER MOLE OF ESTER, HYDROLYZING THE RESULTING PRODUCT WITH WATER AT A TEMPERATURE SO AS TO OBTAIN A FINAL MIXTURE IN THE RANGE OF 5* TO 25*C., DRYING THE GEL, AND CALCINING THE DRY GEL IN AIR AT 950* TO 1250*F., AND THEN COOLING THE SAME.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |