Patent US3356485A successfully refreshed from Google Patents.
Patent US3377141A successfully refreshed from Google Patents.
US3377141A
Expired / Lapsed
US
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Process for producing metal carbides utilizing a solution treatment prior to reaction
Assignee: Cabot Corp
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Filing: 1964-08-26
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Granted: 1968-04-09
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Expires: 1984-08-26
Abstract
No abstract record available.
Inventors
- 👤 John F Hardy
- 👤 Merrill E Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:57
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/90; B; B82; B82Y; B82Y30/00; C01P; C01P2004/00; C01P2004/60; C01P2004/61; C01P2004/64; C01P2006/00; C01P2006/80; C01P2006/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR PRODUCING THE FINELY-DIVIDED METAL CARBIDES AND MIXTURES THEREOF COMPRISING THE STEPS OF: (A) UNIFORMLY MIXING INTO A LIQUID MEDIUM (1) A METAL COMPOUND WHICH CAN BE CONVERTED TO THE CORRESPONDING METAL CARBIDE BY REACTION WITH CARBON, AND (2) CARBON BLACK, (B) SPRAY DRYING THE RESULTING MIXTURE, AND (C) HEATING THE RESULTING PARTICLES IN THE ABSENCE OF SUBSTANTIAL OF OXYGEN TO A TEMPERATURE SUFFICIENT TO CONVERT SAID METAL COMPOUND TO THE CORRESPONDING METAL CARBIDE AND BELOW THE SINTERING TEMPERATURE OF SAID METAL CARBIDE.
Claim 2
Dependent Claim
85 words
A PROCESS FOR PRODUCING THE FINELY-DIVIDED METAL CARBIDES AND MIXTURES THEREOF COMPRISING THE STEPS OF: (A) UNIFORMLY MIXING INTO A LIQUID MEDIUM (1) A METAL COMPOUND WHICH CAN BE CONVERTED TO THE CORRESPONDING METAL CARBIDE BY REACTION WITH CARBON, AND (2) CARBON BLACK, (B) SPRAY DRYING THE RESULTING MIXTURE, AND (C) HEATING THE RESULTING PARTICLES IN THE ABSENCE OF SUBSTANTIAL OF OXYGEN TO A TEMPERATURE SUFFICIENT TO CONVERT SAID METAL COMPOUND TO THE CORRESPONDING METAL CARBIDE AND BELOW THE SINTERING TEMPERATURE OF SAID METAL CARBIDE.
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) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |