Filing date

The filing date of an application is the date on which it was validly filed, i.e. was deemed to fulfil the filing requirements concerned. In Espacenet you can find the filing date in the Bibliographic data section right after the Application number in the format yyyymmdd.

There is no dedicated search field for the filing date.

You can, however, search for patent documents with a specific filing date by using the application number field of the Advanced search mask. Simply enter the date in the format yyyymmdd and click on Search.

For more information on Espacenet, see the following pages: