Granted Patent
Utility
US 5,698,839 · App. 08/418,336
Magnetically encodable card having magnetic pigment uniformly dispersed in plastic
Inventors:
Tomasz Mark Jagielinski, Frederick J. Jeffers, Robert O. James
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: Apr 7, 1995
Inventors
Tomasz Mark Jagielinski
Frederick J. Jeffers
Robert O. James
Assignee (at issue)
EASTMAN KODAK COMPANY
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.