Granted Patent
Utility
US 5,312,247 · App. 07/887,362
Transpalatal orthodontic appliance of superelastic or shape-memory alloy
Inventors:
Rohit Sachdeva, Farrokh Farzin-Nia
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: May 21, 1992
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.