Patents by Inventor Calvin M. Doyle

Calvin M. Doyle 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).

  • Articulated razor handle extension
    Patent number: 6189222
    Abstract: An articulated razor handle extension is disclosed which comprises a handle adapted to be grasped by a hand at one end thereof, and a gripping head adapted to engage a handle at the other end. The handle and the gripping head are joined by a plurality of shaft sections which are releasably connected by at least one spur gear assembly.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: February 20, 2001
    Inventor: Calvin M. Doyle