Patents by Inventor Michael M. Greer

Michael M. Greer 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).

  • Pocket finger exercise board
    Patent number: 4065995
    Abstract: A pocket finger exercise board takes the form of a two part molded plastic assembly including an open top, elongated hollow body member with a planar cover member fixed to and overlying the body member. The cover member has notches at opposed ends, and a series of transverse ribs project from its upper surface with a string strung in multiple turn fashion on the cover member across the transverse ribs and within the notches and fixed at respective ends to the lower surface of the cover member. The cover member is screwed to the body member to permit dis-assembly and restringing.
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: January 3, 1978
    Inventor: Michael M. Greer
  • Pocket finger exercise board
    Patent number: D244103
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: April 19, 1977
    Inventor: Michael M. Greer
  • Pocket finger exercise board
    Patent number: D249182
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: August 29, 1978
    Inventor: Michael M. Greer