Granted Patent
Utility
US 4,765,818 · App. 07/018,256
Porous glass monoliths
Inventors:
Tessie M. Che, Raymond V. Carney, Duane L. Dotson
Patented Case
View Patent ↗
Granted: Aug 23, 1988
Filed: Feb 24, 1987
Inventors
Tessie M. Che
Raymond V. Carney
Duane L. Dotson
Assignee (at issue)
Hoechst Celanese 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.