Granted Patent
Utility
US 5,889,248 · App. 08/925,880
Operating mechanism for combined interrupter disconnect switch
Inventors:
Horst Plettner, Willie B. Freeman, Jeffry R. Meyer, Thomas Hertig, Anthony S. Masarik
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Sep 8, 1997
Inventors
Horst Plettner
Willie B. Freeman
Jeffry R. Meyer
Thomas Hertig
Anthony S. Masarik
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.