Patents Examined by Gregoria Epps
  • Multidirectional single surface optically shaped film
    Patent number: 6700712
    Abstract: A multidirectional single surface optically shaped film is disclosed. The optically shaped film may include a film having only one surface structure with two or more different, overlapping Fresnel patterns formed in the structured surface for use as thin, decorative film.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: March 2, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: James Servatius, Robert T. Fehr