Granted Patent
Utility
US 4,861,272 · App. 07/175,785
Impedance controlled connector interface
Inventor:
Stephen L. Clark
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Mar 31, 1988
Inventor
Stephen L. Clark
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.