2.1 Examining the validity of a right to priority 2.2 The same invention 2.3 Priority claim not valid 2.4 Some examples of determining priority dates Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/f_vi_2.htmDate retrieved: 17 May 202110 references found. Click X to load a reference inside the current page, click on the title to open in a new page.EPO Guidelines - B SearchXGL B VI 5.3 Doubts as to the validity of the priority claim; extension of the search Loading...XGL B XI 4.1 Use of "P" and "E" documents in the search opinion Loading...EPO Guidelines - D Opposition and Limitation/Revocation ProceduresXGL D III 5 Grounds for opposition Loading...EPO Guidelines - F The European Patent ApplicationXGL F General Loading...XGL F IV 3.8 Independent claims containing a reference to another claim or to features from a claim of another category Loading...XGL F VI – Priority Loading...XGL F VI 2.1 Examining the validity of a right to priority Loading...XGL F VI 2.2 The same invention Loading...XGL F VI 2.3 Priority claim not valid Loading...XGL F VI 2.4 Some examples of determining priority dates Loading...