Patents by Inventor Mary H. Abel

Mary H. Abel 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).

  • Heater front with doors
    Patent number: D262399
    Type: Grant
    Filed: March 4, 1980
    Date of Patent: December 22, 1981
    Assignee: E.K. Industries, Inc.
    Inventors: Valentine J. Zimmerman, Mary H. Abel
  • Playground climber
    Patent number: D271228
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: November 1, 1983
    Assignee: E. E. Industries Inc.
    Inventors: Valentine J. Zimmerman, Mary H. Abel, Lloyd J. Rubbelke