FR847254A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for the production of cyclotetramethylene-sulfone and its substitutes
Assignee: IG Farbenindustrie AG
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Filing: 1938-12-08
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Granted: 1939-10-05
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Expires: 1958-12-08
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 23:36
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/46; C07D333/48
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