Granted Patent
Utility
US 6,720,712 · App. 09/815,250
Piezoelectric identification device and applications thereof
Inventors:
Walter Scott, Donald E. Jones
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Mar 23, 2001
Inventors
Walter Scott
Donald E. Jones
Assignee (at issue)
Cross Match Technologies, 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.