IP Verse

Improved Filter Paper For Cigarette Filters

Patent No. EP3433427 (titled "Improved Filter Paper For Cigarette Filters") was filed by Delfortgroup on Jan 24, 2017. The application was issued on Jun 25, 2025.

Patent Summary

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Patent Oppositions (2)

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
MIQUEL Y COSTAS & MIQUELJun 9, 2021CUETO
SCHWEITZER MAUDUITJun 8, 2021WALL

Dossier Documents

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EP3433427

DELFORTGROUP
Application Number
EP17701315A
Filing Date
Jan 24, 2017
Status
Patent Maintained As Amended
May 23, 2025
Publication Date
Jun 25, 2025
External Links
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