Granted Patent
Utility
US 6,743,639 · App. 09/687,791
Magnetizable bead detector
Inventors:
Mark C. Tondra, John M. Anderson
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Oct 13, 2000
Inventors
Mark C. Tondra
John M. Anderson
Assignee (at issue)
NVE 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.