Patents by Inventor Terrence F. Kehoe

Terrence F. Kehoe 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).

  • Security device for sheet material and method of marking the device
    Patent number: 4582345
    Abstract: A method of indicating the face value of a commercial document such as a bank draft or a check while simultaneously precluding subsequent alteration thereof.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: April 15, 1986
    Inventor: Terrence F. Kehoe