Granted Patent
Utility
US 5,261,518 · App. 08/029,453
Combined conductivity and magnetic currency validator
Inventor:
David R. Bryce
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Mar 11, 1993
Inventor
David R. Bryce
Assignee (at issue)
THE BRANDT COMPANIES, LLC
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.