Granted Patent
Utility
US 4,403,104 · App. 06/368,557
Gas-insulated bushing having minimized throat diameter
Inventor:
Steinar J. Dale
Patented Case
View Patent ↗
Granted: Sep 6, 1983
Filed: Apr 15, 1982
Inventor
Steinar J. Dale
Assignee (at issue)
Westinghouse Electric Company LLC
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.