Patents by Inventor Terence G. Makin

Terence G. Makin 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).

  • Method of and apparatus for applying a mark to paper and a paper for use in such method
    Patent number: 4760239
    Abstract: A method of applying a "pseudo watermark" to paper, comprises the steps of preparing a paper containing a suitable amount of a thermally sensitive material, the presence of which renders the translucency of the paper variable by temperature change, and subsequently applying heat to a part of the surface of the paper in a manner to cause a region of the paper to become semi-translucent. Apparatus suitable for applying heat to the paper is also disclosed.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: July 26, 1988
    Assignee: St. Regis Paper Company (UK) Limited
    Inventor: Terence G. Makin