Granted Patent
Utility
US 5,277,900 · App. 06/700,351
Method for blood coagulation on hard tissues
Inventor:
Wolfgang Ritter
Patented Case
View Patent ↗
Granted: Jan 11, 1994
Filed: Feb 11, 1985
Inventor
Wolfgang Ritter
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.