US3556780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing carbide-containing alloy
Assignee: Crucible Materials Corp
•
Filing: 1966-01-03
•
Granted: 1971-01-19
•
Expires: 1986-01-03
Abstract
Abstract FULLY DENSE IRON-BASE ALLOYS CHARACTERIZED BY HAVING A MICROSTRUCTURE EXHIBITING A SUBSTANTIALLY UNIFORMLY DISPERSED CARBIDE PHASE OF PARTICLES SIZE PREDOMINANTLY LESS THAN 3 MICRONS ARE PRODUCED FROM PREALLOYED POWDERS BY RAPIDLY QUENCHING AN ATOMIZED ALLOY CHARGE AND SUBJECTING THE SOLIDIFIED PARTICLES TO THE STEP OF HOT CONSOLIDATION IN AN ENVIRONMENT PROTECTED AGAINST ADMISSION OF OXYGEN TO PRODUCE METAL STOCK DIRECTLY FROM PREALLOYED POWDER BY PLASTIC DEFORMATION.
Inventors
- 👤 Frederick C Holtz Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:44
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/02; C22C33/0257; C22C38/00; C22C38/18; C22C38/36; Y; Y10; Y10S; Y10S75/00; Y10S75/95; Y10S75/956
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |