Granted Patent
Utility
US 4,821,089 · App. 07/059,194
Protection of IGFET integrated circuits from electrostatic discharge
Inventor:
Mark S. Strauss
Patented Case
View Patent ↗
Granted: Apr 11, 1989
Filed: Jun 4, 1987
Inventor
Mark S. Strauss
Assignee (at issue)
American Telephone and Telegraph Company, AT&T Bell Laboratories
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.