Patent DE744218C successfully refreshed from Google Patents.
DE744218C
Expired / Lapsed
DE
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Process for the production of acidic dyes of the anthraquinone series
Assignee: IG Farbenindustrie AG
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Filing: 1939-07-09
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Granted: 1944-01-20
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Expires: 1959-07-09
Abstract
No abstract record available.
Inventors
- 👤 Dr Ernst Heinrich
- 👤 Dr Werner Zerweck
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-09 18:34
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/78; C09B62/80; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/32; C09B1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE623883C
Cited
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