Granted Patent
Utility
US 5,164,469 · App. 07/648,237
Transparent resin material
Inventors:
Kohei Goto, Zen Komiya, Noboru Yamahara, Akira Iio, Masao Hisatomi, Hiroshi Oka
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Jan 31, 1991
Inventors
Kohei Goto
Zen Komiya
Noboru Yamahara
Akira Iio
Masao Hisatomi
Hiroshi Oka
Assignee (at issue)
Japan Synthetic Rubber Corporation
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.