Guidelinesfor Examination PART A CHAPTER III EXAMINATION OF FORMAL REQUIREMENTS 6. Claim to priority (see also C-V) 6.9 Non-entitlement to right to priority
A European patent application has no right to priority if:
(i)
the application was not filed within a period referred to in III, 6.1(iii) or the applicant has failed to indicate, within the period referred to in III, 6.6, a corrected date of priority preceding by no more than one year the date of filing of the European application;