Patents by Inventor John G. Sherman

John G. Sherman 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: 4050079
    Abstract: Electrocardiographic apparatus wherein said apparatus is contained within a wholly insulated enclosure and the recording assembly including writing pens is provided with means for placing an insulating barrier in a position to protect the pens when replenishing the recording paper.
    Type: Grant
    Filed: September 9, 1976
    Date of Patent: September 20, 1977
    Assignee: Cambridge Instrument Company, Inc.
    Inventors: Timothy C. Pegnim, Larry R. France, John G. Sherman, Claude MacQuignon