Granted Patent
Utility
US 6,485,659 · App. 09/097,624
Electrical apparatus with dielectric fluid blend of polyalphaolefins and polyol esters or triglycerides
Inventors:
Gary L. Goedde, Gary A. Gauger, John Lapp, Alan P. Yerges
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Jun 16, 1998
Inventors
Gary L. Goedde
Gary A. Gauger
John Lapp
Alan P. Yerges
Assignee (at issue)
Cooper Industries Holdings
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.