Patent US2973247A successfully refreshed from Google Patents.
US2973247A
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Titanium boride and method for making same
Assignee: NL Industries Inc
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Filing: 1953-12-10
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Granted: 1961-02-28
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Expires: 1973-12-10
Abstract
No abstract record available.
Inventors
- 👤 Espenschied Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:05
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/02; C01B35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
METHOD FOR THE PRODUCTION OF A TITANIUM COMPOUND OF BORON WHICH COMPRISES SLURRYING A MIXTURE OF AN UNCALCINED TITANIA HYDRATE PULP, CARBON AND AN OXIDIC COMPOUND OF BORON, AND HEATING SAID SLURRY AT A TEMPERATURE OF FROM 1350* C. TO 1750* C. IN AN INERT ATMOSPHERE TO PRODUCE FINELY DIVIDED TITANIUM BORIDE HAVING A PARTICLE SIZE FROM ABOUT 1 MICRON TO ABOUT 15 MICRONS.
Claim 2
Dependent Claim
64 words
METHOD FOR THE PRODUCTION OF A TITANIUM COMPOUND OF BORON WHICH COMPRISES SLURRYING A MIXTURE OF AN UNCALCINED TITANIA HYDRATE PULP, CARBON AND AN OXIDIC COMPOUND OF BORON, AND HEATING SAID SLURRY AT A TEMPERATURE OF FROM 1350* C. TO 1750* C. IN AN INERT ATMOSPHERE TO PRODUCE FINELY DIVIDED TITANIUM BORIDE HAVING A PARTICLE SIZE FROM ABOUT 1 MICRON TO ABOUT 15 MICRONS.
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) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |