European Patent Convention
Rule 146
Communication of information contained in the files

Subject to the restrictions laid down in Article 128, paragraphs 1 to 4, and in Rule 144, the European Patent Office may, upon request, communicate information concerning any file relating to a European patent application or European patent, subject to the payment of an administrative fee. However, the European Patent Office may refer to the option of file inspection where it deems this to be appropriate in view of the quantity of information to be supplied.

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