Posts Tagged: "antecedent basis"

First, every patent claim needs a preamble, which is the introductory phrase in a claim… Second, every patent claim needs a transition. The most common transitions are: “comprising” and “consisting of” … Third, the first time you introduce a limitation you MUST introduce it with either “a” or “an”, as is grammatically appropriate… Below in an example of an independent claim that applies the above stated three simple rules, which is taken from U.S. Patent No. 6,009,555, titled Multiple component headgear system.