What is the examiner’s burden in rejecting a patent application for lack of utility?

When an examiner concludes that a patent application claims an invention that is nonuseful, inoperative, or contradicts known scientific principles, they have the initial burden of providing evidence to support this conclusion. The MPEP states: “When the examiner concludes that an application claims an invention that is nonuseful, inoperative, or contradicts known scientific principles, the…

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