US2900349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attrition-resistant inorganic oxide gels and method for preparing the same
Assignee: ExxonMobil Oil Corp
•
Filing: 1954-02-11
•
Granted: 1959-08-18
•
Expires: 1974-02-11
Abstract
No abstract record available.
Inventors
- 👤 Albert B Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:20
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/0052; B01J13/0056; B01J13/006; B01J21/00; B01J21/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A METHOD FOR PREPARING AN INORGANIC OXIDE GEL CHARACTERIZED BY HIGH RESISTANCE TO ATTRITION WHICH COMPRISES DISPERSING AN AN INORGANIC OXIDE SOL A POWDERED MATERIAL INSOLUBLE THEREIN HAVING A WEIGHT MEAN PARTICLE DIAMETER OF BETWEEN 2 AND 4 MICRONS, EFFECTING GELATION OF SAID SOL CONTAINING POWDER MATERIAL AND DRYING THE RESULTING HYDROGEL AT A TEMPERATURE BELOW THE FUSSION POINT OF SAID MATERIAL.
Claim 2
Independent Claim
62 words
A METHOD FOR PREPARING AN INORGANIC OXIDE GEL CHARACTERIZED BY HIGH RESISTANCE TO ATTRITION WHICH COMPRISES DISPERSING AN AN INORGANIC OXIDE SOL A POWDERED MATERIAL INSOLUBLE THEREIN HAVING A WEIGHT MEAN PARTICLE DIAMETER OF BETWEEN 2 AND 4 MICRONS, EFFECTING GELATION OF SAID SOL CONTAINING POWDER MATERIAL AND DRYING THE RESULTING HYDROGEL AT A TEMPERATURE BELOW THE FUSSION POINT OF SAID MATERIAL.
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) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |