EP Patent

EP0004279B1 — Verfahren zur Herstellung von 4-Pyridon-3-carbonsäuren, 1-Cyclopropyl-4-Pyridon-3-Carbonsäurederivate und diese enthaltende Arzneimittel

Assigned to Bayer AG · Expires 1982-12-29 · 43y expired

What this patent protects

Patent listed against null.

Drugs covered by this patent

Patent Metadata

Patent number: EP0004279B1
Jurisdiction: EP
Classification: —
Expires: 1982-12-29
Drug substance claim: No
Drug product claim: No
Assignee: Bayer AG
Source: FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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