Has a patent application been withdrawn or refused? Is a granted patent still valid?
Has it expired? Has it lapsed? Has it been revoked? ... GPI now includes searchable legal status (event date, code and text). This currently consists of the frontfile data provided by more than 40 authorities as of week 37/2013, and soon the full legal status information (backfile) will be searchable. Learn more about legal status searching in GPI from the updated User manual.