Granted Patent
Utility
US 4,097,993 · App. 05/784,227
Orthodontic arch wire
Inventor:
Lawrence F. Andrews
Patented Case
View Patent ↗
Granted: Jul 4, 1978
Filed: Apr 4, 1977
Inventor
Lawrence F. Andrews
Assignee (at issue)
A Company Incorporated
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.