US2736713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dispersing inorganic oxide sols
Assignee: Universal Oil Products Co
•
Filing: 1952-09-02
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Granted: 1956-02-28
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Expires: 1972-09-02
Abstract
No abstract record available.
Inventors
- 👤 Maurice J Murray
- 👤 Donald L Holden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:57
CPC Classifications
B; B01; B01J; B01J13/00; B01J21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN THE MANUFACTURE OF INORGANIC OXIDE SPHERES WHEREIN A GELABLE HYDROUS INORGANIC OXIDE SOL IS DISPERSED IN DROPLET FORM THROUGH A DISPERSING DEVICE IN THE UPPER PORTION OF A GELATION ZONE CONTAINING A GELLING MEDIUM THROUGH WHICH THE SOL DROPLETS DESCEND AND SET TO A GEL DURING THEIR DESCENT THROUGH SAID MEDIUM, THE METHOD OF PREVENTING PREMATURE GELATION OF THE SOL AND RESULTANT CLOGGING OF THE DISPERSING DEVICE WHICH COMPRISES INTRODUCING A GEL-RETARDING GAS TO THE UPPER PORTION OF SAID ZONE IN THE IMMEDIATE VINCINITY OF THE DISPERSING DEVICE
Claim 2
Dependent Claim
89 words
IN THE MANUFACTURE OF INORGANIC OXIDE SPHERES WHEREIN A GELABLE HYDROUS INORGANIC OXIDE SOL IS DISPERSED IN DROPLET FORM THROUGH A DISPERSING DEVICE IN THE UPPER PORTION OF A GELATION ZONE CONTAINING A GELLING MEDIUM THROUGH WHICH THE SOL DROPLETS DESCEND AND SET TO A GEL DURING THEIR DESCENT THROUGH SAID MEDIUM, THE METHOD OF PREVENTING PREMATURE GELATION OF THE SOL AND RESULTANT CLOGGING OF THE DISPERSING DEVICE WHICH COMPRISES INTRODUCING A GEL-RETARDING GAS TO THE UPPER PORTION OF SAID ZONE IN THE IMMEDIATE VINCINITY OF THE DISPERSING DEVICE
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |