Granted Patent
Utility
US 5,833,462 · App. 08/606,265
Precision attachments for dental technology capable of being cast on
Inventors:
Bernd Kempf, Hans-Martin Ringelstein, Alexander Voelcker, Ulrich Birkholz
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Feb 23, 1996
Inventors
Bernd Kempf
Hans-Martin Ringelstein
Alexander Voelcker
Ulrich Birkholz
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.