T 0037/82 (Low-tension switch) of 29.07.1983

I. Where a technical feature was clearly disclosed in the original application but its effect was not mentioned or not mentioned fully, yet it can be deduced from the original application on the basis of normal expert considerations, subsequent clarification of that effect in the description does not contravene Article 123(2) EPC.

II. In assessing the inventive step of a combination of features consideration must be given to a feature only if the applicant has provided evidence that it contributes either independently or in conjunction with one or more of the other features, to the solution of the problem set in the description.