Patents by Inventor Robert Kaelblein

Robert Kaelblein 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).

  • Mailer with sticker-type sign
    Patent number: 4351474
    Abstract: A unitary mailer item has an envelope and an attached sticker-type sign piece, both of which are readily detachable from the item.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: September 28, 1982
    Assignee: Beatrice Foods Co.
    Inventors: Robert Kaelblein, John H. Jones