Summary

Robert H. Henry Golan v. Gonzales — Opinion of the Court

However, the idea/expression dichotomy's utility as a definitional mechanism is limited to determining whether a proposed work is an idea or whether the work displays sufficient originality to constitute an expression. In the typical case, the danger to free speech interests is that an individual might gain monopoly privileges over an idea. Here, by contrast, there is no doubt that the works at issue are expressions; the threat to free expression lies not in what is being copyrighted, but in the fact that the works are being removed from the public domain.
Source: Wikisource

Robert H. Henry Golan v. Gonzales — Opinion of the Court

There, the Supreme Court concluded that Congress could not issue a patent when the invention had resided in the public domain before the inventor had applied for the patent. For both their Progress Clause and "limited Times" arguments, plaintiffs rely heavily on the Graham Court's statement that "Congress may not authorize the issuance of patents whose effects are to remove existent knowledge from the public domain, or to restrict free access to materials already available."
Source: Wikisource

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