The patent EP1882157 was granted to Sikorsky Aircraft on Feb 7, 2018. The application was originally filed on Apr 20, 2006 under application number EP06784368A. The patent is currently recorded with a legal status of "No Opposition Filed Within Time Limit".

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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