c)
Drafting of disclaimers – disclaimer shall not remove less than is necessary 

In case T 440/04 the question was whether disclaiming example 1 of C63 was sufficient to restore novelty. Whereas on the one hand a disclaimer should not remove more than was necessary to restore novelty, it cannot, on the other hand, be considered to serve its intended purpose when it excises less than what is necessary to restore novelty. The disclosure in C63 of fibres having compositions and properties as required by the present claims 1 according to all requests was not limited to the fibres described in example 1 of C63. "Cutting out" the latter fibres was thus not sufficient to exclude from the said claims 1 all those fibres disclosed in C63 having a composition and the inherent properties according to said claims.

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