LAWS OF MALAWI Patents (Subsidiary) 16. Cap. 49:02 Patents Regulations (1) No descriptive matter shall appear on constructional drawings, but drawings in the nature of flow sheets may bear descriptive matter to show the materials used and the chemical or other reactions or treatments effected in carrying out the invention. (2) Drawings showing a number of instruments or units of apparatus and their interconnections, either mechanical or electrical, where each such instrument or unit is shown only symbolically, may bear such descriptive matter as is necessary to identify the instruments or their interconnections. (3) Such descriptive matter shall be in black or very dark markings on both the original and the true copy drawings and on the latter the letters shall be not less than ¼ inch in height. (4) No drawing or sketch, other than a graphic chemical formula or a mathematical formula, symbol or equation, shall appear in the verbal part of the specification and if such a formula, symbol or equation is used therein a copy thereof, prepared in the same manner as original drawings, except that it may be a hand-made drawing on tracingcloth, shall be furnished if the Registrar so directs. Descriptive matter. 17. Drawings shall be delivered at the Office free from folds, breaks or creases which would render them unsuitable for reproduction by photography. Drawings not to be creased. 18. If an applicant desires to adopt the drawings lodged with his provisional specification as the drawings or part of the drawings for his complete specification, he shall refer to them in the complete specification as those lodged with the provisional specification. Drawings lodged with provisional specification. PART III EXAMINATION OF APPLICATIONS AND ACCEPTANCE OF COLPETE SPECIFICATIONS 19. (1) When the Registrar, in making the investigation under section 16 of the Act, finds that the application or specification does not comply with the requirements of subsection (1) of that section, the Registrar may refuse to accept the application or require the application or the specification which accompanied it to be amended in such manner as may be necessary. (2) The Registrar may appoint a hearing if he considers it desirable to do so, having regard to the time remaining for putting the application in order or other circumstances of the case. (3) When a hearing is appointed the applicant shall be given fourteen days’ notice of the appointment or such shorter notice as appears to the Registrar to be reasonable in the circumstances and shall as soon as possible notify the Registrar whether he will attend the hearing. 99 Examination procedure under section 16.