Patents by Inventor Leonard Mark Weinstein

Leonard Mark Weinstein 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: 8348141
    Abstract: A convenient, economical, novel parcel paper for folding to enclose a gemstone is provided, which includes three rectangular sheets of paper (or a paper-like material) and a thin, rectangular substantially transparent viewing pane attached to at least the inner one of the rectangular sheets. The three sheets include an outer cover sheet, a thin central flute, and a thin inner flute. Each of the sheets is configured with an open rectangular viewing window. The viewing pane is attached to the inner flute to form a continuous, unified sheet; thus when the cover, central flute, and inner flute are folded together with their viewing windows aligned, the viewing pane allows observation of the enclosed gemstone enclosed within the folded parcel paper.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: January 8, 2013
    Inventor: Leonard Mark Weinstein
  • Publication number: 20080107835
    Abstract: The nature of the technical disclosure show the three separate sheets of Gemstone parcel paper bonded at the edge of a plastic window, which is placed relatively in the center of a unfolded three ply gemstone paper.
    Type: Application
    Filed: November 2, 2006
    Publication date: May 8, 2008
    Inventor: Leonard Mark Weinstein