Patents by Inventor Pietro E. Corsi

Pietro E. Corsi 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: 4220680
    Abstract: In a multilayered structure of plastics materials in sheet form, such as a sheet carrying scripts, indications and the like, the improvement consisting in forming through an intermediate layer an opening or window to receive a liquid-crystal temperature indicator which remains permanently embedded in the multilayered structure. Useful articles e.g. a calendar incorporating a thermometer can be fabricated without any substantial increase of the cost of the article as such.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: September 2, 1980
    Assignee: S.p.A. Cellograf-Simp
    Inventor: Pietro E. Corsi