IP Verse

Dry Vacuum Pump Apparatus

Patent No. EP3842642 (titled "Dry Vacuum Pump Apparatus") was filed by Ebara on Apr 18, 2011. The application was issued on Sep 14, 2022.

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
PFEIFFER VACUUMJun 13, 2023INNOVINCIA

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

EP3842642

EBARA
Application Number
EP21157362A
Filing Date
Apr 18, 2011
Status
Granted And Under Opposition
Aug 12, 2022
Publication Date
Sep 14, 2022
External Links
Slate, Register , Google Patents