Patent US3586742A successfully refreshed from Google Patents.
US3586742A
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US
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Process of preparing oxide microspheres
Assignee: Gulf Energy and Environmental Systems Inc
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Filing: 1966-11-25
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Granted: 1971-06-22
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Expires: 1986-11-25
Abstract
Abstract OXIDE MICROSPHERES ARE PREPARED BY INJECTING DROPLETS OF AN AQUEOUS METAL OXIDE SOL INTO A STREAM OF ORGANIC LIQUID THAT IS SUBSTANTIALLY IMMISCIBLE WITH THE SOL. GASEOUS AMMONIA IS DISSOLVED IN THE ORGANIC LIQUID, AND CONTACT BETWEEN THE LIQUID STREAM AND THE DROPLETS IS MAINTAINED FOR A SUFFICIENT TIME TO PERMIT THE AMMONIA FROM THE ORGANIC LIQUID TO GEL THE SOL DROPLETS. URANIUM-THRIUM OXIDE MICROSPHERES CAN BE PRODUCED USING KEROSENE OR CARBON TETRACHLORIDE INTO WHICH GASEOUS AMMONIA HAS BEEN BUBBLED.
Inventors
- 👤 Jack Chin
- 👤 Roy E Norman
- 👤 James H Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:23
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/02; B01J2/06; B01J2/08; G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/623; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |