Granted Patent
Utility
US 5,683,245 · App. 08/453,160
Shape memory orthodontic archwire having variable recovery stresses
Inventors:
Rohit Sachdeva, Farrokh Farzin-Nia
Patented Case
View Patent ↗
Granted: Nov 4, 1997
Filed: May 30, 1995
Inventors
Rohit Sachdeva
Farrokh Farzin-Nia
Assignee (at issue)
Ormco Corporation
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.