How can an international application be filed electronically on a physical medium ("offline filing")?
The physical media accepted by the EPO as receiving Office are CD-R, DVD+R and DVD-R. For more information, please refer to the WIPO PCT Guide.[ 15 ]
OJ 2007, Spec.Ed.3, A.5
If an international application is filed on a physical medium, the acknowledgement of receipt is sent by post (see point 2.2.027).
Source: http://www.epo.org/applying/international/guide-for-applicants/html/e/ga_c2_2_4.html
Date retrieved: 17 May 2021