Patents Examined by Ron Salpizio
  • Method and system for electronic document certification
    Patent number: 6158003
    Abstract: A system and method for certified transmission of an electronic document, as verified by the generation of a certification indicia. Three embodiments of the system and method are disclosed, providing for the certified transmission of a document through an independent certification device or for direct transmission from a sender to a recipient. Furthermore, the resulting certification indicia may be generated by an independent certification device or by a portable processor at the sender or receiver's location.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: December 5, 2000
    Assignee: E-Stamp Corporation
    Inventor: Salim G. Kara