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Guidelines for Examination

 
 
2.4.3
Multiple priorities claimed for different inventions in the application with an intermediate publication of one of the inventions 

EP claims priority of P1 and P2, D is the disclosure of A+B.

1.1.90

1.2.90

1.3.90

1.6.90

filing

publication

filing

filing

P1

D

P2

EP

A + B

A + B

A + B + C

claim 1: A + B

 

 

 

claim 2: A + B + C

Claim 1 has a valid priority of P1 for its subject-matter, thus publication D is not state of the art under Art. 54(2) against this claim. Claim 2 cannot benefit from the priority of P1, as it does not concern the same subject-matter. Thus publication D is state of the art under Art. 54(2) for this claim (see G 3/93). It is immaterial whether claim 2 is in the form of a dependent or an independent claim.