US2987392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rapidly producing metallic powders of high purity
Assignee: Individual
•
Filing: 1960-02-02
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Granted: 1961-06-06
•
Expires: 1980-02-02
Abstract
No abstract record available.
Inventors
- 👤 Lester D Supiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:26
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/30; B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/20; C22B5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR REDUCING A METALLIC COMPOUND HAVING A CRITICAL TEMPERATURE OF APPROXIMATELY 700* C. MAXIMUM, TO PURE METALLIC POWDER COMPRISING ADDING A SOLID ORGANIC REDUCING AGENT TO THE METAL COMPOUND WHICH AGENT CONSISTS OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF HEXAMINE AND HEXAMINE DERIVATIVES, HEATING THE SOLID ORGANIC REDUCING AGENT AND METAL COMPOUND IN A GASEOUS REDUCING AGENT TO EFFECT REACTION BETWEEN BOTH REDUCING AGENTS WITH THE METAL COMPOUND TO REDUCE SUBSTANTIALLY ALL OF THE METAL COMPOUND BEFORE THE CRITICAL TEMPERATURE IS REACHED, AND CONTINUING THE HEATING IN THE GASEOUS REDUCING AGENT UNTIL THE METALLIC PRODUCT IS COMPLETELY REDUCED TO METAL.
Claim 2
Dependent Claim
103 words
A PROCESS FOR REDUCING A METALLIC COMPOUND HAVING A CRITICAL TEMPERATURE OF APPROXIMATELY 700* C. MAXIMUM, TO PURE METALLIC POWDER COMPRISING ADDING A SOLID ORGANIC REDUCING AGENT TO THE METAL COMPOUND WHICH AGENT CONSISTS OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF HEXAMINE AND HEXAMINE DERIVATIVES, HEATING THE SOLID ORGANIC REDUCING AGENT AND METAL COMPOUND IN A GASEOUS REDUCING AGENT TO EFFECT REACTION BETWEEN BOTH REDUCING AGENTS WITH THE METAL COMPOUND TO REDUCE SUBSTANTIALLY ALL OF THE METAL COMPOUND BEFORE THE CRITICAL TEMPERATURE IS REACHED, AND CONTINUING THE HEATING IN THE GASEOUS REDUCING AGENT UNTIL THE METALLIC PRODUCT IS COMPLETELY REDUCED TO METAL.
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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |