CA Patent

CA1235689A — Cephalosporin derivatives and a process for their preparation

Assigned to Hoechst AG · Expires 1988-04-26 · 38y expired

What this patent protects

Abstract of the disclosure: Cephem derivatives of the formula a process for their preparation, pharmaceutical formula-tions containing these compounds and the preparation thereof and the use of these compounds for combating bac-terial infections.

USPTO Abstract

Abstract of the disclosure: Cephem derivatives of the formula a process for their preparation, pharmaceutical formula-tions containing these compounds and the preparation thereof and the use of these compounds for combating bac-terial infections.

Drugs covered by this patent

Patent Metadata

Patent number: CA1235689A
Jurisdiction: CA
Classification: —
Expires: 1988-04-26
Drug substance claim: No
Drug product claim: No
Assignee: Hoechst 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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