Patents by Inventor Robert E. Irelan

Robert E. Irelan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Mechanical pencil
    Patent number: 7645083
    Abstract: The instant invention is a mechanical pencil. The pencil includes a body having a cavity and a lead holding mechanism located in the cavity. The lead holding mechanism includes a pair of arms joined together by a bridge. Each arm terminates with a pair of fingers. The fingers close together when the lead holding mechanism is recessed into the cavity. The fingers open when the lead holding mechanism is advanced out of the cavity.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: January 12, 2010
    Assignee: BISS Product Development LLC
    Inventors: James M. Burry, Daniel R. Seymour, Robert E. Irelan, Dean A. Snyder