Granted Patent
Utility
US 5,427,360 · App. 08/126,256
Refractory brick design for open end of refractory lined vessel
Inventor:
Edward L. Erny
Patented Case
View Patent ↗
Granted: Jun 27, 1995
Filed: Sep 24, 1993
Inventor
Edward L. Erny
Assignee (at issue)
Indresco 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.