Granted Patent
Utility
US 5,755,783 · App. 08/688,672
Suture rings for rotatable artificial heart valves
Inventors:
Robert Stobie, George Xinsheng Guo
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Jul 29, 1996
Inventors
Robert Stobie
George Xinsheng Guo
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.