Granted Patent
Utility
US 6,638,644 · App. 09/941,120
Electroluminescent devices having diarylanthracene polymers
Inventors:
Shiying Zheng, Jianmin Shi, Kathleen M. Vaeth
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Aug 28, 2001
Inventors
Shiying Zheng
Jianmin Shi
Kathleen M. Vaeth
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.