Granted Patent
Utility
US 5,953,021 · App. 08/862,109
Microprocessor system for data channel extraction
Inventor:
Xuejian Cheng
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: May 22, 1997
Inventor
Xuejian Cheng
Assignee (at issue)
Sun Microsystems 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.