IP Verse

Foundry Articles For Metalworking Applications, Methods Of Making Such Foundry Articles, And Particulate Refractory Compositions For Use In Such Methods

Patent No. EP3727721 (titled "Foundry Articles For Metalworking Applications, Methods Of Making Such Foundry Articles, And Particulate Refractory Compositions For Use In Such Methods") was filed by Calderys Metalcasting Germany on Dec 20, 2018. The application was issued on Apr 30, 2025.

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
HUTTENES ALBERTUS CHEMISCHE WERKE GESELLSCHAFT MIT BESCHRANKTER HAFTUNGJan 30, 2026EISENFUHR SPEISER

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

EP3727721

CALDERYS METALCASTING GERMANY
Application Number
EP18826047A
Filing Date
Dec 20, 2018
Status
Granted And Under Opposition
Mar 28, 2025
Publication Date
Apr 30, 2025
External Links
Slate, Register , Google Patents