Granted Patent
Utility
US 6,171,770 · App. 09/449,325
Method for applying a protective overcoat to a photographic element
Inventors:
Jiann-Hsing Chen, Biao Tan, Muhammed Aslam, Robert A. Lancaster
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Nov 24, 1999
Inventors
Jiann-Hsing Chen
Biao Tan
Muhammed Aslam
Robert A. Lancaster
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.