Granted Patent
Utility
US 4,800,130 · App. 07/003,713
Laminate excellent in surface gloss and surface hardness, and preparation process and use thereof
Inventors:
Katsuyoshi Yonekura, Akira Uchiyama, Akira Matsuda
Patented Case
View Patent ↗
Granted: Jan 24, 1989
Filed: Jan 15, 1987
Inventors
Katsuyoshi Yonekura
Akira Uchiyama
Akira Matsuda
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.