Polycarbonate Compositions Having Improved Adhesion To Polyurethane Layers

Patent No. EP3057755 (titled "Polycarbonate Compositions Having Improved Adhesion To Polyurethane Layers") was filed by Covestro Deutschland on Oct 13, 2014. The application was issued on Jan 1, 2020.

Patent Summary

Patent Family

Patent Family

Patent Oppositions

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
SABICOct 1, 2020MODIANO

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

  • Date

    Description

  • Get instant alerts for new documents

EP3057755

COVESTRO DEUTSCHLAND
Application Number
EP14789206A
Filing Date
Oct 13, 2014
Status
Revoked
Oct 1, 2021
Publication Date
Jan 1, 2020