Patents by Inventor Betty A. Shulman

Betty A. Shulman 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).

  • Patent number: D306017
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: February 13, 1990
    Inventors: Donald P. Shulman, Betty A. Shulman
  • Patent number: D316879
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: May 14, 1991
    Inventors: Donald P. Shulman, Betty A. Shulman
  • Patent number: D317021
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: May 21, 1991
    Inventors: Donald P. Shulman, Betty A. Shulman