Granted Patent
Utility
US 5,638,519 · App. 08/246,588
Electronic method and system for controlling and tracking information related to business transactions
Inventor:
John Haluska
Patented Case
View Patent ↗
Granted: Jun 10, 1997
Filed: May 20, 1994
Inventor
John Haluska
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.