| http://www.w3.org/ns/prov#value | - The Court explained that the legal regime governing a particular patent ???depend[s] on the law as it stood at the emanation of the patent, together with such changes as have been since made; for though they may be retrospective in their operation, that is not a sound objection to their validity.??? Id., at 206.[9] Neither is it a sound (p204) objection to the validity of a copyright term extensio
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