Patents by Inventor Marvin Mahaffy

Marvin Mahaffy 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: 5624007
    Abstract: A device is disclosed for the insertion and removal of rod-type tree steps having vertically spaced apart first and second horizontally disposed sections extending oppositely from a vertically disposed central section. The device has a body portion including a handle and an opening for removably receiving therein the second section of the tree step. A lock member is selectively positionable with respect to the body portion so as to intrude into the opening therein and restrain unwanted movement of the second section of the tree step. A guide slot provided adjacent the upper and of and opening away from the body portion removably captures the central section of the tree step.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: April 29, 1997
    Inventor: Marvin Mahaffy