This Handbook provides an overview of federal patent and trademark law. Information discussed includes types of patents and trademarks, duration of registration, requirements for obtaining, a guide to the application process, protecting your patent or trademark, and much more in 18 pages of materials.
The catch is, it wasn't a paper-clip patent. Instead, William Middlebrook patented a machine that would make wire paper clips.The paper clip is a Nordic invention with a patent history that reflects innovation in design and function. This page provides information on the types of patents and types of patent applications, and the examination process. The number of patent assignments for a county is based upon the cumulative assignees in a county for the designated time-period, i.e.