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In s patentable", and 35 U.S.C. 112, "specification". There are three types of utility: # General utility is the requirement of functionality. # Specific utility is the requirement that the invention actually perform the function. # Moral, or beneficial, utility requires that the invention not "poison, promote debauchery, facilitate private assassination". Lowell v. Lewis, 15 F. Cas. 1018, 1019 (C.C.D. Mass. 1817) The Patent Examiner s guidelines require that a patent application express a specific, credible, and substantial utility. Rejection by an examiner usually requires documentary evidence establishing a '' Prima Facie '' showing of no specific and substantial credible utility. has made it clear that "''subject-matter or activities may be excluded from patentability under even where they have practical utility''" (headnote III.), thus ruling out the utility of an invention as a decisive patentability criterion. Instead, it requires that to be patentable an invention must have Industrial Applicability . Under the European Patent Convention , see for instance . NOTES AND REFERENCES SEE ALSO
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