Granted Patent
Utility
US 5,650,485 · App. 08/439,028
Non-oxidizing polymeric medical implant
Inventors:
Deh-Chuan Sun, Casper F. Stark
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: May 11, 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.