Granted Patent
Utility
US 5,583,934 · App. 08/398,295
DC level control for an electronic telephone line card
Inventor:
Yan Zhou
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Mar 3, 1995
Inventor
Yan Zhou
Assignee (at issue)
Advanced Micro Devices, 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.