US3836631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making uranium sesquicarbide
Assignee: EIJI MUNEKATA JA
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Filing: 1972-07-18
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Granted: 1974-09-17
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Expires: 1992-07-18
Abstract
Abstract THIS INVENTION RELATES TO A METHOD OF MAKING URANIUM SESQUICARBIDE U2C3 BY MIXING URANIUM DICARBIDE UC2 WITH METAL OXIDE AND SUBJECTING THE MIXTURE TO HEATING VACUUM.
Inventors
- 👤 H Tagawa
- 👤 K Fujii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:57
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/90; C01B32/914; C01B32/928
Claims Analysis
Total Claims: 0
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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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |