US3337327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing finely-divided metal products
Assignee: Cabot Corp
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Filing: 1964-11-06
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Granted: 1967-08-22
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Expires: 1984-11-06
Abstract
No abstract record available.
Inventors
- 👤 Merrill E Jordan
- 👤 John F Hardy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:01
CPC Classifications
C; C22; C22B; C22B5/00; C22B5/02; C22B5/04; B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/24; C01; C01B; C01B13/00; C01B13/14; C01B13/34; C01B32/00; C01B32/90; C22B5/06; C01P; C01P2004/00; C01P2004/60; C01P2004/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS FOR PRODUCING FINELY-DIVIDED METALLURGICAL POWDERS COMPRISING THE STEPS OF: (A) PREPARING A SOLUTION OF AT LEAST ONE METAL COMPOUND WHICH UPON HEATING IN THE SUBSTANTIAL ABSENCE OF OXYGEN CAN BE CONVERTED TO THE CORRESPONDING OXIDE, (B) SUBDIVIDING SAID SOLUTION INTO DROPLETS AND CONCONTACTING SAID DROPLETS WITH A PLURALITY OF PARTICULATE CARBON BODIES HEATED TO A TEMPERATURE AT LEAST SUF FICIENT TOCONVERT SAID METAL COMPOUND TO THE CORRESPONDING OXIDE.
Claim 2
Dependent Claim
70 words
A PROCESS FOR PRODUCING FINELY-DIVIDED METALLURGICAL POWDERS COMPRISING THE STEPS OF: (A) PREPARING A SOLUTION OF AT LEAST ONE METAL COMPOUND WHICH UPON HEATING IN THE SUBSTANTIAL ABSENCE OF OXYGEN CAN BE CONVERTED TO THE CORRESPONDING OXIDE, (B) SUBDIVIDING SAID SOLUTION INTO DROPLETS AND CONCONTACTING SAID DROPLETS WITH A PLURALITY OF PARTICULATE CARBON BODIES HEATED TO A TEMPERATURE AT LEAST SUF FICIENT TOCONVERT SAID METAL COMPOUND TO THE CORRESPONDING OXIDE.
References Cited (Backward Citations)
US2242759A
Cited
US2429721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |