US2870000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finely divided metal-containing substances and process for the preparation thereof
Assignee: ChampionX LLC
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Filing: 1954-10-05
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Granted: 1959-01-20
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Expires: 1974-10-05
Abstract
No abstract record available.
Inventors
- 👤 John W Ryznar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:43
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/0004; B01J13/0043; B01J39/00; B22; B22F; B22F1/00; B22F1/18; B22F9/00; B22F9/16; B22F9/18; B22F9/20; B22F9/22; Y; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/14; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A PROCESS OF PRODUCING A METAL DISPERSED ON FINELY DIVIDED CARBON PARTICLES WHICH COMPRISES PREHEATING A METAL SALT OF A PARTIALLY CROSS-LINKED CATION EXCHANGE RESIN BELOW ITS DECOMPOSITION TEMPERATURE AT A TEMPERATURE AND FOR A PERIOD OF TIME SUCH THAT THE RESIN SALT
Claim 2
Dependent Claim
43 words
A PROCESS OF PRODUCING A METAL DISPERSED ON FINELY DIVIDED CARBON PARTICLES WHICH COMPRISES PREHEATING A METAL SALT OF A PARTIALLY CROSS-LINKED CATION EXCHANGE RESIN BELOW ITS DECOMPOSITION TEMPERATURE AT A TEMPERATURE AND FOR A PERIOD OF TIME SUCH THAT THE RESIN SALT
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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |