Granted Patent
Utility
US 4,558,019 · App. 06/572,727
Periclase refractory brick with oxyhydrocarbon component
Inventors:
Abraham M. Kotliar, John P. Sibilia, Ronald H. Hughes, Richard A. Landy
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Jan 20, 1984
Inventors
Abraham M. Kotliar
John P. Sibilia
Ronald H. Hughes
Richard A. Landy
Assignee (at issue)
ALLIED CONSULTING, 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.