US4915733B1
Expired / Lapsed
US
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Agglomerated metal composite powders
Assignee: H.C. Starck GmbH
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Filing: 1989-01-19
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Granted: 1993-12-14
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Expires: 2009-01-19
Abstract
Abstract The present invention relates to metal powder agglomerates of individual particles which consist of more than 80% by weight of one or more metals of the elements molybdenum, rhenium or tungsten and binder metals from the group comprising iron, cobalt, nickel, copper, silver, gold, palladium, platinum, rhodium, chromium and rhenium, processes for the preparation of these metal powder agglomerates and their use.
Inventors
- 👤 Schuetz Heinz-Eckert
- 👤 Szesny Bernhard
- 👤 E. Krismer Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:06
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/16; B01D1/18; B01J; B01J2/00; B01J2/02; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/20; B22F9/22
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-12-13 | 1997-06-14 | 1997-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-13 | 2001-06-14 | 2001-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-13 | 2005-06-14 | 2005-12-14 | $7700.00 | Window Closed / Lapsed |