Patents by Inventor Stephen R. Sharkey

Stephen R. Sharkey 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: 4227199
    Abstract: A double check or safety system for recording information of two types on a record sheet, such as a time clock card. One type of information is applied automatically to a first predetermined area of the record sheet when the sheet is inserted into a machine, such as the entrance time and exit time stamped onto the record sheet by a time clock. The other type of information is applied manually by the operator, such as a signature applied by the operator to a second predetermined area of the record sheet associated with the time stamp area.
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: October 7, 1980
    Inventor: Stephen R. Sharkey