Granted Patent
Utility
US 6,442,532 · App. 09/134,813
Wireless transaction and information system
Inventor:
Joseph C. Kawan
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Aug 17, 1998
Inventor
Joseph C. Kawan
Assignee (at issue)
Transaction Technology, 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.