Granted Patent
Utility
US 5,991,742 · App. 08/650,293
Time and expense logging system
Inventor:
Bao Tran
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: May 20, 1996
Inventor
Bao Tran
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.