Patents by Inventor Lawrence I. Chipkin

Lawrence I. Chipkin 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).

  • Stackable easel
    Patent number: 5056250
    Abstract: A self-standing placard adapted to bear a message on its front side. The placard comprises a curvable member fastened at one end to the back side of the placard at an acute angle, and a stiff, spacing member connected with reinforcement to the other end of the curvable member.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: October 15, 1991
    Inventors: Richard P. Weissleder, Lawrence I. Chipkin, Frank A. Lamendola