Patent No. EP3779481 (titled "Device And Method For Checking Whether Contactor Provided In Ess Is Fused") was filed by LG Chem on Nov 18, 2019. The application was issued on Feb 17, 2021.

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.
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