Granted Patent
Utility
US 4,174,331 · App. 05/656,475
Refractory moldable composition containing ceramic fiber and colloidal silica
Inventor:
Thomas A. Myles
Patented Case
View Patent ↗
Granted: Nov 13, 1979
Filed: Feb 9, 1976
Inventor
Thomas A. Myles
Assignee (at issue)
Carborundum 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.