Granted Patent
Utility
US 4,500,745 · App. 06/471,780
Hybrid electrical insulator bushing
Inventor:
Michael R. Miggins
Patented Case
View Patent ↗
Granted: Feb 19, 1985
Filed: Mar 3, 1983
Inventor
Michael R. Miggins
Assignee (at issue)
Interpace 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.