Granted Patent
Utility
US 5,133,756 · App. 07/458,710
Process for producing a bone replacement material
Inventors:
Gerd Bauer, Freimut Vizethum
Patented Case
View Patent ↗
Granted: Jul 28, 1992
Filed: Feb 20, 1990
Inventors
Gerd Bauer
Freimut Vizethum
Assignee (at issue)
MERCK PATENT GESELLSCHAFT MIT BESHRANK TER HAFTUNG
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.