Patents by Inventor Ludwig Lippert

Ludwig Lippert 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).

  • Postcard type mailing piece with removable message labels
    Patent number: 4938414
    Abstract: A postcard-type mailing piece with removable messages constructed of a paper sheet of 40 to 60 lb. paper stock and message labels of 100 lb. paper stock using a silicone release coating adhesive to releasably bond the message labels to the paper sheet. The mailing piece is capable of receiving a multi-color printing without smudging or bleeding.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: July 3, 1990
    Inventor: Ludwig Lippert