Patents Assigned to Joseph D. Ben-Dak
  • Automatic book mark
    Patent number: 4941684
    Abstract: A book mark for use in combination with a book having a front cover, a back cover and a spine therebetween, comprises a clamp for releasable attachment to the book and a marker, integrally formed with the clamp and arranged to extend, in use, from the clamp generally outward of the spine of the book, for releasably marking a page in the book. The clamp and the marker are formed of a molded, flexible, resilient material.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: July 17, 1990
    Assignee: Joseph D. Ben-Dak
    Inventors: Amos Frank, Joel Kehat