Granted Patent
Utility
US 4,734,643 · App. 06/762,711
Method and apparatus for detecting the presence of magnetic ink within a package by magnetizing and selectively remagnitizing the ferro-magnetic materials in the package
Inventors:
David M. Bubenik, Gerald August, Richard K. Niles, James M. Pippin
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: Aug 5, 1985
Inventors
David M. Bubenik
Gerald August
Richard K. Niles
James M. Pippin
Assignee (at issue)
ElectroCom Automation
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.