Granted Patent
Utility
US 6,424,748 · App. 09/285,709
Method for increasing bit number of digital image signals generated by a scanner
Inventor:
Cheng Ting-Shan
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Apr 5, 1999
Inventor
Cheng Ting-Shan
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.