Patent US2913312A successfully refreshed from Google Patents.
US2913312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of titanium boride
Assignee: Union Carbide Corp
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Filing: 1954-11-04
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Granted: 1959-11-17
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Expires: 1974-11-04
Abstract
No abstract record available.
Inventors
- 👤 Dubeck Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:03
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/02; C01B35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A PROCESS FOR THE PURIFICATION OF TITANIUM BORIDE WHICH CONTAINS AT LEAST ONE OF THE CONTAMINANTS IN THE GROUP CONSISTIG OF FREE AND COMBINED CARBON, SAID PROCESS COMPRISING MIXING SAID TITANIUM BORIDE WITH MAGNESIUM OXIDE AND CALCINING THE MIXTURE.
Claim 2
Dependent Claim
39 words
A PROCESS FOR THE PURIFICATION OF TITANIUM BORIDE WHICH CONTAINS AT LEAST ONE OF THE CONTAMINANTS IN THE GROUP CONSISTIG OF FREE AND COMBINED CARBON, SAID PROCESS COMPRISING MIXING SAID TITANIUM BORIDE WITH MAGNESIUM OXIDE AND CALCINING THE MIXTURE.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |