Granted Patent
Utility
US 5,940,191 · App. 08/677,238
Colored optical sensing module
Inventor:
Jenn-Tsair Tsai
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Jul 9, 1996
Inventor
Jenn-Tsair Tsai
Assignee (at issue)
Mustek Systems 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.