Granted Patent
Utility
US 5,609,988 · App. 08/229,746
Radiation sensitive resin composition
Inventors:
Hidetoshi Miyamoto, Shinji Shiraki, Yoshiji Yumoto, Takao Miura
Patented Case
View Patent ↗
Granted: Mar 11, 1997
Filed: Apr 19, 1994
Inventors
Hidetoshi Miyamoto
Shinji Shiraki
Yoshiji Yumoto
Takao Miura
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.