(1)All documents and copies of the documents, except affidavits and drawings, filed with patent office, shall -(a)be typewritten or printed in Hindi or English (unless otherwise directed or allowed by the Controller) in large and legible characters not less than 0.28 centimetre high with deep indelible ink with lines widely spaced not less than one and half spaced only upon one side of the paper;(b)be on such paper which is flexible, strong, white, smooth, non-shiny, and durable of size A4 of approximately 29.7 centimetre by 21 centimetre with a margin of at least 4 centimetre on the top and left hand part and 3 centimetre on the bottom and right hand part thereof;(c)be numbered in consecutive Arabic numerals in the centre of the bottom of the sheet; and(d)contain the numbering to every fifth line of each page of the description and each page of the claims at right half of the left margin.
