Granted Patent
Utility
US 5,543,471 · App. 08/404,663
Non-oxidizing polymeric medical implant
Inventors:
Deh-Chuan Sun, Casper F. Stark
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Mar 15, 1995
Inventors
Deh-Chuan Sun
Casper F. Stark
Assignee (at issue)
Howmedica Inc.
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.