Patents by Inventor Michael L. Tolley

Michael L. Tolley 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).

  • Supporting material for copying
    Patent number: 4258893
    Abstract: A bracket defining an inverted channel for sliding engagement with a top edge of a drafting board is formed with a depending lip extending outward from the drafting board and an opening for accommodating a flexible cord attached at its other end to a spring-loaded clip for gripping the top edge of an input sheet having information to be transferred to a formal drawing attached to the drafting board.
    Type: Grant
    Filed: March 29, 1978
    Date of Patent: March 31, 1981
    Inventor: Michael L. Tolley