Granted Patent
Utility
US 5,600,713 · App. 08/340,386
On-board ring signal generator
Inventor:
Herbert Chen
Patented Case
View Patent ↗
Granted: Feb 4, 1997
Filed: Nov 15, 1994
Inventor
Herbert Chen
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.