US2936268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of metal borides and silicides
Assignee: American Potash and Chemical Corp
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Filing: 1958-12-18
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Granted: 1960-05-10
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Expires: 1978-12-18
Abstract
No abstract record available.
Inventors
- 👤 David R Stern
- 👤 Mckenna Quentin Hyde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:47
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/33; C01; C01B; C01B33/00; C01B33/06; C01B35/00; C01B35/02; C01B35/04; C25C; C25C3/00; C25C3/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
A PROCESS FOR THE PREPARATION OF AN ALLOY OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF BORON AND SILICON AND A METAL SELECTED FROM THE GROUP CONSISTING OF TI, ZR, HF, V, NB , TA, CR, MO, W, TH AND U, THE PROCESS COMPRISING: MAINTAINING A BATH AT A TEMPERATURE OF ABOUT 400* TO 1000*C., THE BATH CONSISTING ESSENTIALLY OF AN ALKALI METAL CHLORIDE, AND FROM 5% TO 50% OF A COMPLEX DOUBLE FLUORIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF BORON AND SILICON, PASSING A CURRENT THROUGH SAID BATH BETWEEN AN ANODE IMMERSED IN SAID BATH AND A CATHODE TO DEPOSIT ON THE CATHODE AN ALLOY OF A METAL SELECTED FROM THE GROUP CONSISTING OF B AND SI AND OF A METAL SELECTED FROM THE GROUP CONSISTING OF TI, ZR, HF, V, NB, TA, CR, MO, W, TH AND U, SAID ANODE CONSISTING ESSENTIALLY OF A MIXTURE OF A FIRST CARBIDE SELECTED FROM THE GROUP CONSISTING OF BORON CARBIDE AND SILICON CARBIDE AND A SECOND CARBIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TI, ZR, HF, V, NB, TA, CR, MO, W, TH AND U.
Claim 2
Dependent Claim
191 words
A PROCESS FOR THE PREPARATION OF AN ALLOY OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF BORON AND SILICON AND A METAL SELECTED FROM THE GROUP CONSISTING OF TI, ZR, HF, V, NB , TA, CR, MO, W, TH AND U, THE PROCESS COMPRISING: MAINTAINING A BATH AT A TEMPERATURE OF ABOUT 400* TO 1000*C., THE BATH CONSISTING ESSENTIALLY OF AN ALKALI METAL CHLORIDE, AND FROM 5% TO 50% OF A COMPLEX DOUBLE FLUORIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF BORON AND SILICON, PASSING A CURRENT THROUGH SAID BATH BETWEEN AN ANODE IMMERSED IN SAID BATH AND A CATHODE TO DEPOSIT ON THE CATHODE AN ALLOY OF A METAL SELECTED FROM THE GROUP CONSISTING OF B AND SI AND OF A METAL SELECTED FROM THE GROUP CONSISTING OF TI, ZR, HF, V, NB, TA, CR, MO, W, TH AND U, SAID ANODE CONSISTING ESSENTIALLY OF A MIXTURE OF A FIRST CARBIDE SELECTED FROM THE GROUP CONSISTING OF BORON CARBIDE AND SILICON CARBIDE AND A SECOND CARBIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TI, ZR, HF, V, NB, TA, CR, MO, W, TH AND U.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |