Chandelor v Lopus Chandelor v Lopus Chandelor v Lopus (1603) 79 ER 3 is a famous case in the common law of England. It stands for the distinction between warranties and mere affirmations and announced the rule of "caveat emptor" (buyer beware). A man paid £100 for what he thought was a bezoar stone. This is a stone that forms in animals' intestinal systems, and was believed to have magical healing properties. The seller said it was a bezoar stone, which turned out to be false. The buyer sued for the return of the £100 purchase price. How the claimant discovered that the
Patent caveat filing fee increased from $15 to $20." However the patent caveat fee remained $10 per year until the caveat system was abolished. Patent caveat A patent caveat, often shortened to caveat, was a legal document filed with the United States Patent Office. Caveats were instituted by the U.S. Patent Act of 1836, but were discontinued in 1909, with the U.S. Congress abolishing the system formally in 1910. A caveat was similar to a patent application with a description of an invention and drawings, but without examination for patentable subject matter and without a requirement for patent claims. A patent caveat