Granted Patent
Utility
US 5,256,078 · App. 07/957,306
Electrical socket
Inventors:
Nai Hock Lwee, David J. Dutkowsky
Patented Case
View Patent ↗
Granted: Oct 26, 1993
Filed: Oct 5, 1992
Inventors
Nai Hock Lwee
David J. Dutkowsky
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.