Granted Patent
Utility
US 4,252,397 · App. 06/057,112
Insulation piercing electric connector bonded to electric conductor
Inventors:
George Thomas Eigenbrode, William C. Hoffman
Patented Case
View Patent ↗
Granted: Feb 24, 1981
Filed: Jul 12, 1979
Inventors
George Thomas Eigenbrode
William C. Hoffman
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.