Patent US3316062A successfully refreshed from Google Patents.
US3316062A
Expired / Lapsed
US
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Method of purifying titanium diboride
Assignee: Union Carbide Corp
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Filing: 1962-12-18
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Granted: 1967-04-25
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Expires: 1982-12-18
Abstract
No abstract record available.
Inventors
- 👤 John M Criscione
- 👤 Lawrence M Litz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:52
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/02; C01B35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS FOR THE PURIFICATION OF TITANIUM DIBORIDE CONTAINING TITANIUM MONOBORIDE S AN IMPURITY WHICH COMPRISES HEATING THE IMPURE TITANIUM DIBORIDE WITH A BORON SUPPLYING MAATERIAL SELECTEDFROM THE GROUP CONSISTING OF BORON NITRIDE, BORON CARBIDE, AND A MIXTURE OF BORON CARBIDE AND BORON OXIDE AT A TEMPERATURE OF AT LEAST 1300*C., IN AN INERT ATMOSPHERE FOR A PERIOD OF TIME SUFFICIENT TO CONVERT SUBSTANTIALLY ALL THE TITANIUM MONOBORIDE TO TITANIUM DIBORIDE.
Claim 2
Dependent Claim
71 words
A PROCESS FOR THE PURIFICATION OF TITANIUM DIBORIDE CONTAINING TITANIUM MONOBORIDE S AN IMPURITY WHICH COMPRISES HEATING THE IMPURE TITANIUM DIBORIDE WITH A BORON SUPPLYING MAATERIAL SELECTEDFROM THE GROUP CONSISTING OF BORON NITRIDE, BORON CARBIDE, AND A MIXTURE OF BORON CARBIDE AND BORON OXIDE AT A TEMPERATURE OF AT LEAST 1300*C., IN AN INERT ATMOSPHERE FOR A PERIOD OF TIME SUFFICIENT TO CONVERT SUBSTANTIALLY ALL THE TITANIUM MONOBORIDE TO TITANIUM DIBORIDE.
References Cited (Backward Citations)
US3013862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |