Granted Patent
Utility
US 6,497,598 · App. 09/847,233
Environmental barrier material for organic light emitting device and method of making
Inventor:
John D. Affinito
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: May 2, 2001
Inventor
John D. Affinito
Assignee (at issue)
Battelle Memorial Institute
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.