Granted Patent
Utility
US 5,059,451 · App. 07/544,699
Reflection-preventive pellicle film and process for preparation thereof
Inventors:
Tokinori Agou, Hitomi Matsuzaki, Masaaki Kawasaki
Patented Case
View Patent ↗
Granted: Oct 22, 1991
Filed: Jun 27, 1990
Inventors
Tokinori Agou
Hitomi Matsuzaki
Masaaki Kawasaki
Assignee (at issue)
Mitsui Petrochemical Industries, Ltd.
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.