Granted Patent
Utility
US 4,475,972 · App. 06/370,661
Implantable material
Inventor:
Edward W. Wong
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Apr 22, 1982
Inventor
Edward W. Wong
Assignee (at issue)
Ontario Research Foundation
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.