Granted Patent
Utility
US 4,923,948 · App. 07/247,449
Curable composition
Inventors:
Yasuo Matsuki, Yosinobu Kariya, Masayuki Endo, Hiroharu Ikeda, Yoshihiro Hosaka
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Sep 22, 1988
Inventors
Yasuo Matsuki
Yosinobu Kariya
Masayuki Endo
Hiroharu Ikeda
Yoshihiro Hosaka
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.