1. A protection of trade mark shall be entirely invalidated in the following cases:

a/ The registration applicant has neither had nor been assigned the right to register an invention,

industrial design, layout-design or mark;

b/ The subject matter of industrial property fails to satisfy the protection conditions at the time the

protection title is granted.

2. A protection of trade  shall be partly invalidated when that part fails to satisfy the protection conditions.

3. The statute of limitations for trade mark shall be 5 years from the grant date, except where the protection title has been granted due to the applicant’s dishonesty.