Granted Patent
Utility
US 5,318,765 · App. 07/842,610
Monoclinic zirconium dioxide, method of its production and use
Inventors:
Dieter Binder, Peter Kleinschmit, Hans Hoffmeister, Roland Reuter
Patented Case
View Patent ↗
Granted: Jun 7, 1994
Filed: Feb 27, 1992
Inventors
Dieter Binder
Peter Kleinschmit
Hans Hoffmeister
Roland Reuter
Assignee (at issue)
Degussa AG
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.