Granted Patent
Utility
US 4,985,470 · App. 06/880,120
Photopolymerizable compositions
Inventors:
Hideki Nagasaka, Noriaki Takahashi
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Jun 30, 1986
Inventors
Hideki Nagasaka
Noriaki Takahashi
Assignee (at issue)
Mitsubishi Kasei 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.