Granted Patent
Utility
US 5,466,891 · App. 08/225,239
Conical composite SF.sub.6 high voltage bushing with floating shield
Inventors:
Willie B. Freeman, David Scott Johnson, Klaus Froehlich
Patented Case
View Patent ↗
Granted: Nov 14, 1995
Filed: Apr 8, 1994
Inventors
Willie B. Freeman
David Scott Johnson
Klaus Froehlich
Assignee (at issue)
ABB Power T&D Company Inc.
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.