Granted Patent
Utility
US 5,456,895 · App. 08/245,371
Process for the production of crystalline sodium sheet silicate with kanemite structure
Inventors:
Alexander Tapper, Renate Adrian, Gunther Schimmel
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: May 18, 1994
Inventors
Alexander Tapper
Renate Adrian
Gunther Schimmel
Assignee (at issue)
Hoechst GmbH
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.