Patents by Inventor John P. Menkel, Jr.

John P. Menkel, Jr. 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: 3946885
    Abstract: A driver operator cab for waste collection vehicles includes a visual inspection port to permit alignment of lift forks relative to the trash container without aid from other persons and without leaving the normal position of the driver of the vehicle.
    Type: Grant
    Filed: July 8, 1974
    Date of Patent: March 30, 1976
    Assignee: Crane Carrier Company
    Inventors: John P. Menkel, Jr., Stewart N. Metz