Patent US2767083A successfully refreshed from Google Patents.
US2767083A
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US
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Use of nucleating agents in the reduction of salts to metal
Assignee: Chemical Construction Corp
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Filing: 1953-12-23
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Granted: 1956-10-16
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Expires: 1973-12-23
Abstract
No abstract record available.
Inventors
- 👤 Mackiw Vladimir Nicolaus
- 👤 Lin Wei Cheng
- 👤 Roy Tuhin Kumar
- 👤 Kunda Vasyl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:34
CPC Classifications
C; C22; C22B; C22B23/00; C22B23/04; C22B23/0453; C22B23/0461; C22B15/00; C22B15/0063; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN RECOVERING A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER, NICKEL, AND COBALT AS DISCRETE ELEMENTAL METAL POWDER FROM AN AQUEOUS SOLUTION CONTAINING AT LEAST ONE DISSOLVED SALT OF AT LEAST ONE SUCH METAL BY TREATING SUCH SOLUTION WITH A REDUCING GAS AT A SUPERATMOSPHERIC PRESSURE AND AN ELEVATED TEMPERATURE, THE IMPROVEMENT IN COMBINATION THEREWITH OF RAPIDLY INDUCING REDUCTION TO AND FORMATION OF NUCLEI WHICH COMPRISES: INITIATING TREATMENT IN THE PRESENCE OF A FINITE AMOUNT OF A NONGASEOUS, NONMETALLIC NUCLEATION PROMOTER WHICH UNDER THE TREATMENT CONDITIONS IS AN ACTIVE REDUCING AGENT WHEREBY NCLEI ARE FORMED.
Claim 2
Dependent Claim
96 words
IN RECOVERING A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER, NICKEL, AND COBALT AS DISCRETE ELEMENTAL METAL POWDER FROM AN AQUEOUS SOLUTION CONTAINING AT LEAST ONE DISSOLVED SALT OF AT LEAST ONE SUCH METAL BY TREATING SUCH SOLUTION WITH A REDUCING GAS AT A SUPERATMOSPHERIC PRESSURE AND AN ELEVATED TEMPERATURE, THE IMPROVEMENT IN COMBINATION THEREWITH OF RAPIDLY INDUCING REDUCTION TO AND FORMATION OF NUCLEI WHICH COMPRISES: INITIATING TREATMENT IN THE PRESENCE OF A FINITE AMOUNT OF A NONGASEOUS, NONMETALLIC NUCLEATION PROMOTER WHICH UNDER THE TREATMENT CONDITIONS IS AN ACTIVE REDUCING AGENT WHEREBY NCLEI ARE FORMED.
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) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |