US3995000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic nuclear fuel pellets
Assignee: British Nuclear Fuels Ltd
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Filing: 1974-01-11
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Granted: 1976-11-30
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Expires: 1994-01-11
Abstract
Abstract Low density nuclear fuel pellets are produced by mixing uranium dioxide powder and/or plutonium dioxide powder with ammonium oxalate, forming the mixture into pellets and sintering the pellets.
Inventors
- 👤 Gregg Glenn Butler
- 👤 Ronald Henry Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:48
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; G21C3/623; C; C04; C04B; C04B35/00; C04B35/51; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A method of producing nuclear fuel pellets comprising the steps of: providing a mixture of ammonium oxalate powder and at least one powdered nuclear fuel material selected from the group consisting of uranium dioxide and plutonium dioxide; forming said mixture into pellets; and sintering said pellets to form sintered, homogeneous, nuclear fuel pellets.
Claim 2
Independent Claim
53 words
A method of producing nuclear fuel pellets comprising the steps of: providing a mixture of ammonium oxalate powder and at least one powdered nuclear fuel material selected from the group consisting of uranium dioxide and plutonium dioxide; forming said mixture into pellets; and sintering said pellets to form sintered, homogeneous, nuclear fuel pellets.
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) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |