Patents by Inventor Dan M. McDonald

Dan M. McDonald 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).

  • Private cellular telephone system
    Patent number: 5915215
    Abstract: In a more economical system for connecting cellular mobile telephone terminals to wire lines, a stand-alone base station comprising modular transceivers alternately tunable to the base station control channel and individual voice channels.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: June 22, 1999
    Assignee: Harris Canda, Inc.
    Inventors: Roland E. Williams, Michael R. Lee, Dan M. McDonald