Article 4 A sign shall not be accepted as a mark or a part of a mark if it is: A reproduction or an imitation of official slogans, flags, other slogans, logos, designations or abbreviated designations of any country or an international organization which is governmental or established by an international agreement unless they are used under an authorization from the competent governmental authority or organization. A reproduction or an imitation of official symbols or stamps sanctioned by a country for quality and assurance unless their use is authorized by the competent authority of this country. In violation of public order or good morals or if its use is prohibited by law. Likely to mislead the public specially as concerns the nature, quality or geographical origin of the product or service. Article 5 A sign shall not be approved as a mark if its represents an infringement of a prior right especially: A prior registered mark or a well-know mark. A designation or a company name which may lead to the confusion of the public. A commercial name or a distinguished signboard which is known in the whole of Tunisia in case there is a possibility of confusion to the public. A protected appellation of source. A copyright. Rights stemming from a protected industrial drawing or design. Rights associated with the essence of others especially their surnames, pseudonyms or pictures. The name or picture of a local group. Chapter Two Gaining The Rights Associate With A Mark Article 6 The right of ownership of a mark is obtained through registration. Ownership may be gained collectively. The effects of registration shall take effect as from the filing date of the application for a period of ten years. This period of protection may be renewed endlessly.