US2853398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing composite nonmetallic metal powders
Assignee: Viridian Inc Canada
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Filing: 1956-04-11
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Granted: 1958-09-23
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Expires: 1976-04-11
Abstract
No abstract record available.
Inventors
- 👤 Mackiw Vladimir Nicolaus
- 👤 Haworth John Bryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:49
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/24; B22F9/26; B22F1/00; B22F1/18; C; C22; C22C; C22C1/00; C22C1/10; C22C1/1026; C23; C23C; C23C18/00; C23C18/16; C23C18/1601; C23C18/1633; C23C18/1635; C23C18/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE METHOD OF PRODUCING COMPOSITE METAL COATED NON-METALLIC PARTICLES WHICH COMPRIESE DISPERSING SOLID, REFRACTORY, NON-METALLIC PARTICLES IN AN AMMONIATED SOLUTION IN WHICH SAID PARTICLES ARE INSOLUBLE AND WHICH CONTAINS, IN A SOLUTION, A SOLUBLE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF OSMIUM, RHODIUM, RUTHENIUM, IRIDIUM, GOLD, PLATINUN, PALLADIUM, SILVER, COPPER, ARSENIC, TIN NICKEL AND COBALT, REACTING THE SOLUTION WITH A REDUCING GAS AT A TEMPERATURE ABOVE ABOYT 200* F. AND UNDER A POSITIVE PARTIAL PRESSURE OF REDUCING GAS
Claim 2
Independent Claim
81 words
THE METHOD OF PRODUCING COMPOSITE METAL COATED NON-METALLIC PARTICLES WHICH COMPRIESE DISPERSING SOLID, REFRACTORY, NON-METALLIC PARTICLES IN AN AMMONIATED SOLUTION IN WHICH SAID PARTICLES ARE INSOLUBLE AND WHICH CONTAINS, IN A SOLUTION, A SOLUBLE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF OSMIUM, RHODIUM, RUTHENIUM, IRIDIUM, GOLD, PLATINUN, PALLADIUM, SILVER, COPPER, ARSENIC, TIN NICKEL AND COBALT, REACTING THE SOLUTION WITH A REDUCING GAS AT A TEMPERATURE ABOVE ABOYT 200* F. AND UNDER A POSITIVE PARTIAL PRESSURE OF REDUCING GAS
References Cited (Backward Citations)
US521992A
Cited
US2734821A
Cited
US2694006A
Cited
US2694005A
Cited
GB740797A
Cited
US2767081A
Cited
US2790736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |