US2978798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum and silicon containing metal powder and method of producing workpieces therefrom
Assignee: GEA Group AG
•
Filing: 1958-06-09
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Granted: 1961-04-11
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Expires: 1978-06-09
Abstract
No abstract record available.
Inventors
- 👤 Wassermann Gunter
- 👤 Weber Richard
- 👤 Hubinger Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:46
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
AN ALUMINUM-SILICON POWDER COMPOSITION FOR POWDER METALLURGY COMPRISING A MIXTURE OF A FLAKE ALUMINUM POWDER AND GLOBULAR ALUMINUM POWDER, THE PROPORTIONS OF FLAKE ALUMINUM POWDER TO GLOBULAR ALUMINUM POWDER BEING 75% TO 25% : 25% TO 75%, AND CONTAINING 20-35% OF SILICON.
Claim 2
Dependent Claim
42 words
AN ALUMINUM-SILICON POWDER COMPOSITION FOR POWDER METALLURGY COMPRISING A MIXTURE OF A FLAKE ALUMINUM POWDER AND GLOBULAR ALUMINUM POWDER, THE PROPORTIONS OF FLAKE ALUMINUM POWDER TO GLOBULAR ALUMINUM POWDER BEING 75% TO 25% : 25% TO 75%, AND CONTAINING 20-35% OF SILICON.
References Cited (Backward Citations)
GB530996A
Cited
US2809891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |