Known devices may be illustrated by symbols which have a universally recognised conventional meaning and are generally accepted in the art provided no further detail is essential for understanding the subject-matter of the claimed invention. Other signs and symbols may be used provided that they are not likely to be confused with existing conventional symbols, that they are readily identifiable (i.e. simple) and that they are clearly explained in the text of the description. Different types of hatching may also have different conventional meanings as regards the nature of a material seen in cross-section.[R. 10.1(d); (e); ]
Source: http://www.epo.org/law-practice/legal-texts/html/guidelinespct/e/a_v_9.htm
Date retrieved: 17 May 2021
3 references found.
Click X to load a reference inside the current page, click on the title to open in a new page.EPO PCT GL - A Formalities Examination
XGL-PCT A V – Drawings This chapter summarises the requirements for drawings in international applications. An international application must contain drawings where they are necessary to understand the invention. Where they are not, but the [..]