CIPO has announced that maintenance activities will make several online applications inaccessible for portions of Sunday October 2nd and Monday October 3rd including the General Correspondence application for patents, National Entry Request (NER) Online Solution, Patent Maintenance Fee Electronic Service, Patent E-filing, Industrial Design General Correspondence and Copyright General Correspondence. Patent Rule amendments come into force on October 3rd, including excess claim fees and requests for continued examination, that apply to applications where the request for examination is filed on or after October 3rd.