Granted Patent
Utility
US 4,374,202 · App. 06/220,246
Ceramic fiber foam and method for making same
Inventors:
Jerry Zucker, Beth W. Porlier
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Dec 23, 1980
Inventors
Jerry Zucker
Beth W. Porlier
Assignee (at issue)
RM Industrial Products 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.