According to Rule 38 of the European Patent Convention (EPC) Implementing Regulations (IR) ,
(1)
The filing fee and search fee as part of the European Patent Office (EPO) official fees shall be paid within one month of filing the European patent application.
(2)
If the European patent application composes more than 35 pages , for each page exceeding the first 35 pages will be paid additional filling fee of EUR 15,- in accordance with the EPO Rules relating to Fees.