US2984560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high-purity, ductile titanium powder
Assignee: EIDP Inc
•
Filing: 1960-02-08
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Granted: 1961-05-16
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Expires: 1980-02-08
Abstract
No abstract record available.
Inventors
- 👤 Henry S Dombrowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:51
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS FOR PRODUCING A TITANIUM POWDER SUITABLE FOR USE IN POWDER METALLURGY COMPRISING FREE IMPACT MILLING IN AN INERT ATMOSPHERE AT TEMPERATURES BELOW 100*C. A SUBSTANTIALLY ANHYDROUS MIXTURE OF AN ALKALINOUS METAL HALIDE AND TITANIUM METAL OBTAINED FROM THE REDUCTION OF TITANIUM HALIDES, SAID MIXTURE BEING FREE OF ELEMENTAL ALKALINOUS METAL AND HAVING AT LEAST 20% BY WEIGHT OF ALKALINOUS METAL HALIDE, SAID MILLING BEING CONDUCTED UNTIL THE MILLED METAL PARTICLES ARE IN A SIZE RANGE WHEREIN SUBSTANTIALLY ALL PASS A 14-MESH SCREEN.
Claim 2
Dependent Claim
84 words
A PROCESS FOR PRODUCING A TITANIUM POWDER SUITABLE FOR USE IN POWDER METALLURGY COMPRISING FREE IMPACT MILLING IN AN INERT ATMOSPHERE AT TEMPERATURES BELOW 100*C. A SUBSTANTIALLY ANHYDROUS MIXTURE OF AN ALKALINOUS METAL HALIDE AND TITANIUM METAL OBTAINED FROM THE REDUCTION OF TITANIUM HALIDES, SAID MIXTURE BEING FREE OF ELEMENTAL ALKALINOUS METAL AND HAVING AT LEAST 20% BY WEIGHT OF ALKALINOUS METAL HALIDE, SAID MILLING BEING CONDUCTED UNTIL THE MILLED METAL PARTICLES ARE IN A SIZE RANGE WHEREIN SUBSTANTIALLY ALL PASS A 14-MESH SCREEN.
References Cited (Backward Citations)
US2892697A
Cited
US2821468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |