Granted Patent
Utility
US 5,674,290 · App. 08/416,960
Water-stabilized biopolymeric implants
Inventor:
Shu-Tung Li
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Apr 5, 1995
Inventor
Shu-Tung Li
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.