Patent CA476227A successfully refreshed from Google Patents.
CA476227A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Azo dyes from acetoacet-2'-ethyl-5'-chloro anilide
Assignee: Wyeth Holdings LLC
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Filing: —
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Granted: 1951-08-21
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Expires: 1968-08-21
Abstract
No abstract record available.
Inventors
- 👤 Z. Lecher Hans
- 👤 R. Waitkins George
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-31 21:25
CPC Classifications
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Claims Analysis
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