Granted Patent
Utility
US 6,027,340 · App. 08/853,559
Orthodontic appliance for correcting class III malocclusion
Inventor:
Youn Sic Chun
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: May 8, 1997
Inventor
Youn Sic Chun
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.