The
Drawings
(PDF 0.03 MB) are not obligatory. However, a good drawing (or set of drawings) is often of great value in clarifying the nature of an invention. Therefore, drawings may accompany the specification. Where they do they must be mentioned in the text of the description. They must be clear and legible with no extraneous text. Drawings should be filed at the same time as the rest of the specification. Late filing of drawings has implications for the filing date of the application. Please note chemical formulae are normally included within the description.