How does the Sinclair & Carroll Co. v. Interchemical Corp. case relate to the “Art Recognized Suitability” doctrine?

The Sinclair & Carroll Co. v. Interchemical Corp. case is a landmark decision that established the principle of “Art Recognized Suitability for an Intended Purpose” in patent law. This case is frequently cited in patent examinations and legal proceedings when considering the obviousness of material selections. According to MPEP 2144.07: “Claims to a printing ink…

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What does “prima facie obviousness” mean in the context of Art Recognized Suitability?

In the context of Art Recognized Suitability, “prima facie obviousness” refers to a legal standard where, at first glance, an invention appears to be obvious based on the selection of known materials for their recognized purpose. The MPEP 2144.07 states: “The selection of a known material based on its suitability for its intended use supported…

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