Granted Patent
Utility
US 4,298,951 · App. 06/099,201
Nth Root processing apparatus
Inventor:
Stanley R. Hall
Patented Case
View Patent ↗
Granted: Nov 3, 1981
Filed: Nov 30, 1979
Inventor
Stanley R. Hall
Assignee (at issue)
Bunker Ramo 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.