Patent US5347573A successfully refreshed from Google Patents.
Patent DE752280C successfully refreshed from Google Patents.
DE752280C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the preparation of the purest silicon
Assignee: Individual
•
Filing: 1941-03-18
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Granted: 1953-05-26
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Expires: 1961-03-18
Abstract
No abstract record available.
Inventors
- 👤 Gustav Weissenberg
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-07 12:43
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/02; C01B33/021; C01B33/027; C01B33/029
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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