US3009780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of large single crystals of boron phosphide
Assignee: Monsanto Chemicals Ltd
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Filing: 1959-06-22
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Granted: 1961-11-21
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Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Bobbie D Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:35
CPC Classifications
C; C30; C30B; C30B9/00; C30B9/04; C30B9/08; C30B9/12; C01; C01B; C01B25/00; C01B25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
PROCESS FOR THE PRODUCTION OF SINGLE CRYSTALS OF BORON PHOSPHIDE WHICH COMPRISES DISSOLVING A BORON SOURCE SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL BORON AND BORON ALLOYS IN A MOLTEN METAL MATRIX SELECTED FROM THE GROUP CONSISTING OF AT LEAST ONE OF THE METALS OF THE GROUP CONSISTING OF COPPER, ALUMINUM, GALLIUM, INDIUM, SILICON, TITANIUM, ZIRCONIUM, GERMANIUM, CHROMIUM, MANGANESE, IRON, COBALT, NICKEL, RUTHENIUM, RHODIUM, PALLADIUM, OSMIUM, IRIDIUM AND PLATINUM, THE PROPORTION OF BORON CALCULATED AS ELEMENTAL BORON IN THE MATRIX BEING IN THE RANGE OF FROM 0.1% TO 50% BY WEIGHT, AND AFTER THE SAID BORON COMPONENT IS COMPLETELY DISSOLVED, INTRODUCING INTO THE SAID MIXTURE A PHOSPHORUS SOURCE SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL PHOSPHORUS, AND METAL PHOSPHIDES IN SUFFICIENT PROPORTION TO COMBINE WITH THE BORON WHICH IS PRESENT, AND THEREAFTER COOLING THE SAID MOLTEN MIXTURE AT A RATE WITHIN THE RANGE OF FROM 1*C. TO 300*C. PER HOUR FROM THE MOLTEN CONDITION TO THE FREEZING POINT.
Claim 2
Dependent Claim
158 words
PROCESS FOR THE PRODUCTION OF SINGLE CRYSTALS OF BORON PHOSPHIDE WHICH COMPRISES DISSOLVING A BORON SOURCE SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL BORON AND BORON ALLOYS IN A MOLTEN METAL MATRIX SELECTED FROM THE GROUP CONSISTING OF AT LEAST ONE OF THE METALS OF THE GROUP CONSISTING OF COPPER, ALUMINUM, GALLIUM, INDIUM, SILICON, TITANIUM, ZIRCONIUM, GERMANIUM, CHROMIUM, MANGANESE, IRON, COBALT, NICKEL, RUTHENIUM, RHODIUM, PALLADIUM, OSMIUM, IRIDIUM AND PLATINUM, THE PROPORTION OF BORON CALCULATED AS ELEMENTAL BORON IN THE MATRIX BEING IN THE RANGE OF FROM 0.1% TO 50% BY WEIGHT, AND AFTER THE SAID BORON COMPONENT IS COMPLETELY DISSOLVED, INTRODUCING INTO THE SAID MIXTURE A PHOSPHORUS SOURCE SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL PHOSPHORUS, AND METAL PHOSPHIDES IN SUFFICIENT PROPORTION TO COMBINE WITH THE BORON WHICH IS PRESENT, AND THEREAFTER COOLING THE SAID MOLTEN MIXTURE AT A RATE WITHIN THE RANGE OF FROM 1*C. TO 300*C. PER HOUR FROM THE MOLTEN CONDITION TO THE FREEZING POINT.
References Cited (Backward Citations)
US2124509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |