Webcast Alert: Nano-Proprietary, Inc. Announces Its April 19, 2005 Investor Conference Call and Webcast

Apr 15, 2005, 01:00 ET from Nano-Proprietary, Inc.

    AUSTIN, Texas, April 15 /PRNewswire-FirstCall/ -- Nano-Proprietary, Inc.
 (OTC Bulletin Board:   NNPP) announces a Conference Call and Webcast, with the
 details described below.  In addition, Nano-Proprietary announces that it
 knows of no undisclosed information to account for the recent activity in the
 price of its common stock.
      What:     Nano-Proprietary, Inc. Investor Conference Call and Webcast to
                discuss the current status of business opportunities.
      When:     Tuesday, April 19, 2005 at 4:30 p.m. EDT
      Where:    Website link will be available at
                http://www.nano-proprietary.com under "Investor information" or
                call (785) 832 - 2422
      How:      Live over the Internet -- Simply log on to the web at the
                address using the link at Nano-Proprietary's or dial
                (785) 832 - 2041 and use the conference ID: NNPP
      Contact:  Doug Baker, (248) 391 -0612
     Nano-Proprietary, Inc. is a holding company with two operating
 subsidiaries.  Applied Nanotech Inc. is a premier research and development
 organization dedicated to developing applications for nanotechnology with an
 extremely strong position in the field of electron emission applications from
 carbon film/nanotubes.  Electronic Billboard Technology, Inc. (EBT) possesses
 technology related to electronic digitized sign technology.  Nano-
 Proprietary's website is: http://www.nano-proprietary.com
     (Minimum Requirements to listen to broadcast:  The Windows Media Player
 software, downloadable free from
 http://www.microsoft.com/windows/windowsmedia/player/download/download.aspx .)

SOURCE Nano-Proprietary, Inc.