The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2010
Filed:
Feb. 09, 2005
John T. Graef, State College, PA (US);
Eric Kline, State College, PA (US);
Philip R. Hall, Ottsville, PA (US);
John T. Graef, State College, PA (US);
Eric Kline, State College, PA (US);
Philip R. Hall, Ottsville, PA (US);
Intuitive Control Systems, LLC, State College, PA (US);
Abstract
A portable electronic display device includes an electronic display surface having at least one display panel that displays a graphical and/or textual message, memory that stores a plurality of the messages, and one or more switches on the device that allow user selection of one of the messages. The device further includes a controller that disables the one or more switches if none of the switches are selected after a predetermined period of time after power is turned on to the display device, or if none of the switches are selected after a predetermined period of time subsequent to the last switch selection occurrence. In this manner, a person is prevented from subsequently changing the message via the one or more switches.