Patents by Inventor Pamela J. Lockhart

Pamela J. Lockhart 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).

  • Combined puzzle and tray
    Patent number: D277492
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: February 5, 1985
    Assignee: CPG Products Corp.
    Inventors: Pamela J. Lockhart, Daniel J. Cooney
  • Combined puzzle and tray
    Patent number: D278256
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: April 2, 1985
    Assignee: CPG Products Corp.
    Inventor: Pamela J. Lockhart