Patents by Inventor Henry J. Simonson

Henry J. Simonson 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).

  • Collapsible castable crab trap
    Patent number: D303135
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: August 29, 1989
    Inventor: Henry J. Simonson
  • Foldable castable crab trap
    Patent number: D348095
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: June 21, 1994
    Assignees: Louise Simonson, Mark R. Simonson
    Inventor: Henry J. Simonson