Patents by Inventor Arthur J. Merkh

Arthur J. Merkh 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: 4633070
    Abstract: A stack of sheets, each sheet from the next to lowermost upwardly corresponding to a successive binary place, the lowermost sheet carrying array of decimal numerals, a pivot connecting the sheets for relative rotation, and a window in each sheet above the lowermost configured to expose in one position of sheet movement the decimal corresponding to the binary place of the respective sheet and additional decimal numerals.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: December 30, 1986
    Inventor: Arthur J. Merkh