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US2930767A
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Metal particles and method of making
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1957-08-26
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Granted: 1960-03-29
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Expires: 1977-08-26
Abstract
No abstract record available.
Inventors
- 👤 Leo J Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:58
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/755; B01J23/16; B01J23/24; B01J23/28; B01J23/38; B01J23/40; B01J23/42; B01J23/72; B01J37/00; B01J37/0009; B01J37/0018; B01J37/02; B01J37/0238
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A METHOD OF PRODUCING METAL PARTICLES WHICH COMPRISES ESTABLISHING A SOURCE OF DRY INERT GAS AND A SOURCE OF THERMALLY DECOMPOSABLE GASEOUS METAL COMPOUND, HEATING SOLID PARTICLES TO BE GAS PLATED IN AN INERT ATMOSPHERE, CONTACTING THE PARTICLES WITH THE GASEOUS METAL COMPOUND WHILE THE PARTICLES ARE HEATED TO A TEMPERATUURE HIGH ENOUGH TO THERMALLY DECOMPOSE THE GASEOUS METAL COMPOUND AND DEPOSITING THE METAL ONTO THE HEATED PARTICLES, LEACHING THE RESULTANT METAL COATED PARTICLES WITH A SOLVENT WHICH DISSOLVES THE INNER CORE OF THE PARTICLE LEAVING THE OUTER METAL SHELL, AND RECOVERING THE METAL SHELL PARTICLES.
Claim 2
Independent Claim
96 words
A METHOD OF PRODUCING METAL PARTICLES WHICH COMPRISES ESTABLISHING A SOURCE OF DRY INERT GAS AND A SOURCE OF THERMALLY DECOMPOSABLE GASEOUS METAL COMPOUND, HEATING SOLID PARTICLES TO BE GAS PLATED IN AN INERT ATMOSPHERE, CONTACTING THE PARTICLES WITH THE GASEOUS METAL COMPOUND WHILE THE PARTICLES ARE HEATED TO A TEMPERATUURE HIGH ENOUGH TO THERMALLY DECOMPOSE THE GASEOUS METAL COMPOUND AND DEPOSITING THE METAL ONTO THE HEATED PARTICLES, LEACHING THE RESULTANT METAL COATED PARTICLES WITH A SOLVENT WHICH DISSOLVES THE INNER CORE OF THE PARTICLE LEAVING THE OUTER METAL SHELL, AND RECOVERING THE METAL SHELL PARTICLES.
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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |