Granted Patent
Utility
US 4,288,497 · App. 06/111,674
Silicone-coated article and process for production thereof
Inventors:
Mutsuhiro Tanaka, Masatoshi Kashiwagi
Patented Case
View Patent ↗
Granted: Sep 8, 1981
Filed: Jan 14, 1980
Inventors
Mutsuhiro Tanaka
Masatoshi Kashiwagi
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.