Granted Patent
Utility
US 5,979,754 · App. 08/823,323
Door lock control apparatus using paging communication
Inventors:
Jay Martin, Scott Martin
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Mar 21, 1997
Inventors
Jay Martin
Scott Martin
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.