Granted Patent
Utility
US 5,078,737 · App. 07/419,071
Obturator for heart valve prostheses, a heart valve prosthesis provided with such an obturator, and a method for the manufacture thereof
Inventors:
Gioachino Bona, Stefano Rinaldi, Franco Vallana
Patented Case
View Patent ↗
Granted: Jan 7, 1992
Filed: Oct 10, 1989
Inventors
Gioachino Bona
Stefano Rinaldi
Franco Vallana
Assignee (at issue)
Sorin Biomedica S.p.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.