US3270098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making hollow, spherical uo2 particles
Assignee: Individual
•
Filing: 1965-03-08
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Granted: 1966-08-30
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Expires: 1985-03-08
Abstract
No abstract record available.
Inventors
- 👤 Harold N Barr
- 👤 Lennart A Sundquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:36
CPC Classifications
C; C01; C01G; C01G43/00; C01G43/01; C01G43/025; G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/623; C01P; C01P2004/00; C01P2004/01; C01P2004/02; C01P2004/30; C01P2004/32; C01P2004/34; C01P2004/50; C01P2004/80; C01P2004/82; C01P2006/00; C01P2006/80; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
THE METHOD OF PRODUCING SPHERICAL, HOLLOW, CERAMINE, REFRACTORY UO2 PARTICLES, COMPRISING OXIDIZING UO2 PARTICLES, MIXING THESE OXIDIZED PARTICLES WITH A SMALL AMOUNT OF CAO-TIO2 POWER, GRANULATING THE MIXTURE, SPHEROIDIZING THE SINTERED GRANULATED MATERIAL IN A HIGH TEMPERATURE FLAME, COOLING THE SPHEROIDIZED MATERIAL AND FINISHING THE PARTICLES BY REDUCTION IN HYDROGEN AT HIGH TEMPERATURES.
Claim 2
Independent Claim
53 words
THE METHOD OF PRODUCING SPHERICAL, HOLLOW, CERAMINE, REFRACTORY UO2 PARTICLES, COMPRISING OXIDIZING UO2 PARTICLES, MIXING THESE OXIDIZED PARTICLES WITH A SMALL AMOUNT OF CAO-TIO2 POWER, GRANULATING THE MIXTURE, SPHEROIDIZING THE SINTERED GRANULATED MATERIAL IN A HIGH TEMPERATURE FLAME, COOLING THE SPHEROIDIZED MATERIAL AND FINISHING THE PARTICLES BY REDUCTION IN HYDROGEN AT HIGH TEMPERATURES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |