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US3373012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of metallurgical products
Assignee: Cabot Corp
•
Filing: 1964-11-12
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Granted: 1968-03-12
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Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 John F Hardy
- 👤 Merrill E Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:35
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR PRODUCING FINELY-DIVIDED METALLURGICAL PRODUCTS COMPRISING THE STEPS OF: (1) MIXING INTO A LIQUID MEDIUM (A) A SOLUBLE COMPOUND OF METAL, (B) CARBON BLACK, AND (C) A SUBSTANCE WHICH PRECIPITATES A COMPOUND OF SAID METAL WHICH CAN BE CONVERTED BY REACTION WITH CARBON, (2) RECOVERING THE SOLIDS FROM SAID MEDIUM, AND (3) HEATING SAID SOLIDS IN AN ATMOSPHERE SELECTED FROM THE GROUP CONSISTING OF REDUCING ATMOSPHERES AND INERT ATMOSPHERES TO CONVERT SAID METAL COMPOUND OF STEP 1 PART (C) TO A METALLURGICAL PRODUCT.
Claim 2
Dependent Claim
85 words
A PROCESS FOR PRODUCING FINELY-DIVIDED METALLURGICAL PRODUCTS COMPRISING THE STEPS OF: (1) MIXING INTO A LIQUID MEDIUM (A) A SOLUBLE COMPOUND OF METAL, (B) CARBON BLACK, AND (C) A SUBSTANCE WHICH PRECIPITATES A COMPOUND OF SAID METAL WHICH CAN BE CONVERTED BY REACTION WITH CARBON, (2) RECOVERING THE SOLIDS FROM SAID MEDIUM, AND (3) HEATING SAID SOLIDS IN AN ATMOSPHERE SELECTED FROM THE GROUP CONSISTING OF REDUCING ATMOSPHERES AND INERT ATMOSPHERES TO CONVERT SAID METAL COMPOUND OF STEP 1 PART (C) TO A METALLURGICAL PRODUCT.
References Cited (Backward Citations)
US1581898A
Cited
US2242759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |