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Patent US2929685A successfully refreshed from Google Patents.
US2929685A
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Method for making titanium boride from phosphates
Assignee: NL Industries Inc
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Filing: 1953-07-10
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Granted: 1960-03-22
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Expires: 1973-07-10
Abstract
No abstract record available.
Inventors
- 👤 Aagaard Leif
- 👤 Espenschied Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:24
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/02; C01B35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
METHOD FOR THE PRODUCTION OF FINLEY DIVIDED TITAMIUM BORIDE WHICH COMPRISES: FORMING AN INTIMATE MIXTURE OF TITANIUM PYROPHOSPHATE, CARBON AND AN OXIDIC COMPOUND OF BORON, SAID TITANIUM PYROPHOSPHATE, CARBON AND AN OXIDE COMPOUND OF BORON BEING PRESENT IN AT LEAST STOICHIOMETRIC AMOUNTS IN SAID MIXTURE, AND HEATING SAID MIXTURE AT A TEMPERATURE OF FROM ABOUT 1100* C. TO ABOUT 1600*C. IN AN ATMOSPHERE OF ARGON TO CALCINE SAID MIXTURE AND PRODUCE TITANIUM BORIDE HAVING A PARTICLE SIZE FROM ABOUT 1 MICRON TO ABOUT 50 MICRONS.
Claim 2
Dependent Claim
85 words
METHOD FOR THE PRODUCTION OF FINLEY DIVIDED TITAMIUM BORIDE WHICH COMPRISES: FORMING AN INTIMATE MIXTURE OF TITANIUM PYROPHOSPHATE, CARBON AND AN OXIDIC COMPOUND OF BORON, SAID TITANIUM PYROPHOSPHATE, CARBON AND AN OXIDE COMPOUND OF BORON BEING PRESENT IN AT LEAST STOICHIOMETRIC AMOUNTS IN SAID MIXTURE, AND HEATING SAID MIXTURE AT A TEMPERATURE OF FROM ABOUT 1100* C. TO ABOUT 1600*C. IN AN ATMOSPHERE OF ARGON TO CALCINE SAID MIXTURE AND PRODUCE TITANIUM BORIDE HAVING A PARTICLE SIZE FROM ABOUT 1 MICRON TO ABOUT 50 MICRONS.
References Cited (Backward Citations)
GB190014124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |