Granted Patent
Utility
US 6,133,580 · App. 09/168,196
Compensating device for improving the scanning luminance in a scanner
Inventor:
Chung-Yueh Sun
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Oct 7, 1998
Inventor
Chung-Yueh Sun
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.