Patents by Inventor Delbert J. Parkinson

Delbert J. Parkinson 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).

  • Record jacket frame permitting record removal
    Patent number: 4536979
    Abstract: A frame for a record jacket facilitates partial or complete removal of the jacket from the frame for withdrawal of the record disc to be played, and complete return of the jacket, all in an easy rapid manner. Hanging of such frames, singly or in groups, is also enabled.
    Type: Grant
    Filed: October 26, 1981
    Date of Patent: August 27, 1985
    Assignees: Delbert J. Parkinson, William W. Haefliger
    Inventor: Delbert J. Parkinson