Researching Packard Patents at the U.S. Patent and Trademark Office

Posted by Russell Keune On 2009/4/30 20:41:53

Has anyone had any experience in researching the patents issued to the Packard Motor Car Company in the late 1940s and early 1950s by the U.S. Patent and Trademark Office? I am planning to visit their offices in the coming months and would appreciate any advice and guidance from someone who has done similar patent research.