Article 49

1. A request for the substantive examination as referred to in Article 48 paragraph (1) shall be filed at the latest 36 (thirty six) months from the filing date
2. If a request for examination has not been filed within the period as referred to in paragraph (1), or the pertinent fee has not been paid, the application shall be deemed withdrawn
3. The Directorate General shall notify the applicant or his proxy in writing regarding the withdrawal of the application as referred to in paragraph (2)
4. (4) If the request for examination as referred to in paragraph (1) is filed before the end of the announcement period as referred to in Article 44 paragraph (1), the examination shall be conducted after the end of the announcement period
5. If the request for examination as referred to in paragraph (1) is filed after the end of the announcement period as referred to in Article 44 paragraph (1), the examination shall be conducted after the date of receipt of the request for substantive examination.

Article 50

1. For purposes of the substantive examination, the Directorate General may request experts assistance and/or utilize appropriate facilities from other Government agencies or may requested the assistance from examiners of the patent offices
2. The use of expert assistance, facilities, examiners of other patent offices as referred to in paragraph (1) shall be performed by observing e provisions concerning the obligation to preserve the confidentiality as referred to Article 40 and Article 41.

Article 51

1. A substantive examination shall be conducted by examiners
2. The examiners at the Directorate General shall hold the position of a functional official and shall be appointed and dismissed by the Minister in accordance with the prevailing rules and regulations(3) Upon the examiner as referred to in paragraph (2) shall be accorded a functional rank and allowances in addition to other rights in accordance with the prevailing regulations.

Article 52

1. Where the examiner reports that an invention for which a patent has been requested evidently contains vagaries or other significant deficiencies, the Directorate General shall notify the applicant or his proxy and request comments or the completion of such deficiencies
2. The notification as referred to in paragraph (1) shall clearly and specifically state the items considered to be vague or other significant deficiencies together with the reasons and standard or references used in the examination as well as the period for the completion of said deficiencies.

Article 53

If following the notification as referred to in Article 52 paragraph (1) the applicant does not provide any clarification or complete the deficiencies, or does not make any changes or improvements on the application within the period stipulated by the Directorate as referred to in Article 51 paragraph (2), the relevant application shall be deemed withdrawn and the Directorate General shall notify the applicant in writing.