Granted Patent
Utility
US 5,164,880 · App. 07/662,953
Electrostatic discharge protection device for a printed circuit board
Inventor:
David Cronin
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Mar 1, 1991
Inventor
David Cronin
Assignee (at issue)
Polaroid Corporation
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.