Granted Patent
Utility
US 6,127,821 · App. 08/993,723
System for adjusting a magnetic sensor to detect the presence of ferrous objects
Inventors:
Edward A. Ramsden, Bradley S. Beiermann
Patented Case
View Patent ↗
Granted: Oct 3, 2000
Filed: Dec 18, 1997
Inventors
Edward A. Ramsden
Bradley S. Beiermann
Assignee (at issue)
CHERRY GMBH
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.