In the case of Rubber-Coated Harness-Trimming Company v. Welling, the Supreme Court of the United States was asked to decide whether a contract between the two parties was valid. The contract in question was for the sale of a patent right to the Rubber-Coated Harness-Trimming Company. The company had agreed to pay $2,000 for the patent right, but the payment was never made. The Supreme Court held that the contract was valid and enforceable. The Court reasoned that the contract was supported by consideration, as the patent right had been transferred to the company in exchange for the promise of payment. The Court also noted that the company had accepted the patent right and had made use of it, which further supported the validity of the contract. Ultimately, the Court held that the contract was valid and enforceable, and that the company was liable for the $2,000 payment. The Court also noted that the company had not raised any defenses to the contract, such as fraud or mistake, which further supported the validity of the contract.

In the case of Rubber-Coated Harness-Trimming Company v. Welling, the Supreme Court was tasked with determining whether a patent for an invention had been infringed upon by another party. The majority opinion held that there was no infringement and dismissed the claim. However, Justice Field dissented from this decision and argued that it should be reversed due to evidence indicating that there had indeed been infringement on behalf of Welling. He noted that while some differences existed between the two inventions in question, they were not substantial enough to render them distinct creations or exempt one from being considered an imitation of the other's design. Furthermore, he maintained that even if minor variations did exist between them, these would not have any bearing on their overall similarity as products nor negate any potential copyright violation committed by Welling against Rubber-Coated Harness-Trimming Company's patent rights over its own invention.