Granted Patent
Utility
US 5,346,866 · App. 08/143,367
Dental ceramic material with a relatively low processing temperature
Inventors:
Ottmar Komma, Juergen Steidl
Patented Case
View Patent ↗
Granted: Sep 13, 1994
Filed: Oct 28, 1993
Inventors
Ottmar Komma
Juergen Steidl
Assignees (at issue)
Degussa AG
Ducera Dental Gesellschaft mbH
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.