Granted Patent
Utility
US 4,814,120 · App. 07/041,652
Process for the preparation of collagen tubes
Inventors:
Alain Huc, Rene Gimeno
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Apr 21, 1987
Inventors
Alain Huc
Rene Gimeno
Assignee (at issue)
Bioetica, S.A.
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.