Granted Patent
Utility
US 6,624,742 · App. 09/602,340
Wireless intelligent real estate sign and electronic lock box
Inventors:
Guy G. Romano, George William Muncaster, William B. Austin
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Jun 24, 2000
Inventors
Guy G. Romano
George William Muncaster
William B. Austin
Assignee (at issue)
Motorola, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.