Patents by Inventor Harry Sack

Harry Sack 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: 3991967
    Abstract: A book holder is erectable from a totally flat storage position to an elevated use position providing an inclined table having a shelf pivotally attached thereto. A slide assembly disposed upon the outer edge of the shelf includes a pair of pivotally mounted fingers independently laterally displaceable to allow selective positioning of the fingers upon the margins of an open book disposed upon the table and supported against the shelf. Manually releasable means are included to permit adjustment of the inclination of the table and position of the shelf relative the table.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: November 16, 1976
    Inventor: Harry Sack