Granted Patent
Utility
US 4,245,986 · App. 06/031,276
Orthodontic face bow
Inventor:
Lawrence F. Andrews
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Apr 18, 1979
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.