Granted Patent
Utility
US 5,907,288 · App. 08/857,074
Access code processing for a security system
Inventors:
David P. Clark, Alan J. Bowering
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: May 15, 1997
Inventors
David P. Clark
Alan J. Bowering
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.