Patents by Inventor James D. Hall, Sr.

James D. Hall, Sr. 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).

  • Crutch apparatus
    Patent number: 5165436
    Abstract: A crutch member includes spaced first and second legs joined at a lower distal end to a central support leg. A medial handle is positioned orthogonally between the first and second legs, with a swivel ring pivotally mounted orthogonally between the upper distal ends of the first and second legs.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: November 24, 1992
    Inventors: James D. Hall, Sr., Betty J. Hall