Granted Patent
Utility
US 5,647,003 · App. 08/492,782
Method and apparatus for altering a magnetic characteristic of a medium
Inventor:
Kevin J. Pease
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Jun 21, 1995
Inventor
Kevin J. Pease
Assignee (at issue)
Docusystems Inc.
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.