Granted Patent
Utility
US 5,281,563 · App. 07/979,644
Dental ceramic material with a relatively low processing temperature
Inventors:
Ottmar Komma, Juergen Steidl
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Nov 20, 1992
Inventors
Ottmar Komma
Juergen Steidl
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.