Patents by Inventor John J. Toby

John J. Toby 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).

  • Copyholder
    Patent number: 4340298
    Abstract: This invention relates to a copyholder for exposure of opaque copy material upon a surface unit comprising two end extensions that traverse freely, in a horizontal movement, through two slotted-center end bars that are secured to a pivotal center of an arm unit in providing for elevated or depressed positions on said flexible sheet means for various manual surface curvature adjustments.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: July 20, 1982
    Inventor: John J. Toby