515. Enablement.

Whether a specification is sufficient is a question of fact¹. The requirements are that any directions given be both clear and complete². It is assumed that the skilled person is seeking success and not failure³. In some cases, it may not be necessary to give detailed instructions as the skilled person might naturally expect to determine such matters for himself provided he would have no difficulty in so doing⁴.

Directions must be sufficient for the due execution of the invention throughout the range claimed⁵, including special directions for special cases if the competent workman is not likely to know these