Granted Patent
Utility
US 5,550,176 · App. 08/409,896
Room temperature setting carbonaceous cement with increased electrical conductivity and flexural strength
Inventors:
Irwin C. Lewis, Terrence Pirro, Ronald Greinke, Richard I. Bretz, Dennis J. Kampe
Patented Case
View Patent ↗
Granted: Aug 27, 1996
Filed: Mar 23, 1995
Inventors
Irwin C. Lewis
Terrence Pirro
Ronald Greinke
Richard I. Bretz
Dennis J. Kampe
Assignee (at issue)
UCAR Carbon Technology 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.