US2613154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed borides
Assignee: Saint Gobain Abrasives Inc
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Filing: 1950-05-18
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Granted: 1952-10-07
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Expires: 1970-05-18
Abstract
No abstract record available.
Inventors
- 👤 Harold R Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:20
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/02; C01B35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
PROCESS OF MAKING SOLID ARTICLE OF CARBON BORIDE AND METAL BORIDE WHICH COMPRISES HEATING TO A TEMPERATURE OF AT LEAST 1900* C. UNDER MECHANICAL PRESSURE OF AT LEAST 1000 POUNDS TO THE SQUARE INCH A MIXTURE OF CARBON BORIDE AND METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, VANADIUM, CHROMIUM, ZIRCONIUM, COLUMBIUM, MOLYBDENUM, HAFNIUM, TANTALUM AND TUNGSTEN AND MIXTURES THEREOF, THE AMOUNT OF METAL BEING SUFFICIENT TO SYNTHESIZED WITH THE BORON IN THE CARBON BORIDE AT LEAST 10% AND BEING INSUFFICIENT TO SYNTHESIZE MORE THAN 50% BY VOLUME OF METAL BORIDE SELECTED FROM THE GROUP CONSISTING OF TIB2, VB2, CRB2, ZRB2, CBB2, MO2B5, HFB2, TAB2 AND W2B5 AND MIXTURES THEREOF, SAID CARBON BORIDE HAVING AT LEAST AS MUCH BORON AS IS REPRESENTED BY THE FORMULA CB4, THE AMOUNT OF BORON IN THE MIXTURE BEING SUFFICIENT AND THE AMOUNT OF CARBON IN THE MIXTURE BEING LIMITED SO THAT OVER AND ABOVE THE CARBON IN CB4 AND IN BORIDE SELECTED FROM THE AFORESAID GROUP THERE WILL NOT BE PRESENT AFTER THE SYNTHESIS UNCOMBINED CARBON IN EXCESS OF 2% BY WEIGHT OF THE CB4, AND SUCH EXCESS NOR METAL CARBIDE IN EXCESS OF 4% BY WEIGHT OF SAID ARTICLE.
Claim 2
Dependent Claim
196 words
PROCESS OF MAKING SOLID ARTICLE OF CARBON BORIDE AND METAL BORIDE WHICH COMPRISES HEATING TO A TEMPERATURE OF AT LEAST 1900* C. UNDER MECHANICAL PRESSURE OF AT LEAST 1000 POUNDS TO THE SQUARE INCH A MIXTURE OF CARBON BORIDE AND METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, VANADIUM, CHROMIUM, ZIRCONIUM, COLUMBIUM, MOLYBDENUM, HAFNIUM, TANTALUM AND TUNGSTEN AND MIXTURES THEREOF, THE AMOUNT OF METAL BEING SUFFICIENT TO SYNTHESIZED WITH THE BORON IN THE CARBON BORIDE AT LEAST 10% AND BEING INSUFFICIENT TO SYNTHESIZE MORE THAN 50% BY VOLUME OF METAL BORIDE SELECTED FROM THE GROUP CONSISTING OF TIB2, VB2, CRB2, ZRB2, CBB2, MO2B5, HFB2, TAB2 AND W2B5 AND MIXTURES THEREOF, SAID CARBON BORIDE HAVING AT LEAST AS MUCH BORON AS IS REPRESENTED BY THE FORMULA CB4, THE AMOUNT OF BORON IN THE MIXTURE BEING SUFFICIENT AND THE AMOUNT OF CARBON IN THE MIXTURE BEING LIMITED SO THAT OVER AND ABOVE THE CARBON IN CB4 AND IN BORIDE SELECTED FROM THE AFORESAID GROUP THERE WILL NOT BE PRESENT AFTER THE SYNTHESIS UNCOMBINED CARBON IN EXCESS OF 2% BY WEIGHT OF THE CB4, AND SUCH EXCESS NOR METAL CARBIDE IN EXCESS OF 4% BY WEIGHT OF SAID ARTICLE.
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) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |