Federal Act
on the Protection of Trade Marks and Indications of Source
(Trade Mark Protection Act, TmPA)

Where the reg­u­la­tions do not ful­fil or no longer ful­fil the re­quire­ments of Art­icle 23 and the pro­pri­et­or of the mark does not rem­edy the situ­ation with­in the time lim­it de­term­ined by the court, the re­gis­tra­tion of the mark be­comes null and void on ex­piry of this time lim­it.