Patent US2740708A successfully refreshed from Google Patents.
US2740708A
Expired / Lapsed
US
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Method of producing metal powder from solutions
Assignee: Viridian Inc Canada
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Filing: 1955-03-14
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Granted: 1956-04-03
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Expires: 1975-03-14
Abstract
No abstract record available.
Inventors
- 👤 Papee Henry Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:31
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
73 words
IN PRECIPITATING POWDER OF A METAL OF THE GROUP CONSISTING OF COPPER, NICKEL AND COBALT BY TREATMENT OF A SOLUTION IN WHICH THE METAL IS PRESENT AS A DISSOLVED SALT WITH A REDUCING GAS AT ELEVATED TEMPERATURE AND PRESSURE, THE IMPROVEMENT WHICH COMPRISES PROVIDING IN THE SOLUTION A FINITE AMOUNT OF A MEMBER OF THE GROUP CONSISTING OF HIGHER FATTY ACIDS AND SALTS THEROF AND COMPOUNDS CONTAINING HIGHER FATTY ACIDS AND SALTS THEREOF.
Claim 2
Dependent Claim
73 words
IN PRECIPITATING POWDER OF A METAL OF THE GROUP CONSISTING OF COPPER, NICKEL AND COBALT BY TREATMENT OF A SOLUTION IN WHICH THE METAL IS PRESENT AS A DISSOLVED SALT WITH A REDUCING GAS AT ELEVATED TEMPERATURE AND PRESSURE, THE IMPROVEMENT WHICH COMPRISES PROVIDING IN THE SOLUTION A FINITE AMOUNT OF A MEMBER OF THE GROUP CONSISTING OF HIGHER FATTY ACIDS AND SALTS THEROF AND COMPOUNDS CONTAINING HIGHER FATTY ACIDS AND SALTS THEREOF.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |