Granted Patent
Utility
US 4,920,037 · App. 07/406,180
Photopolymerizable composition
Inventors:
Noriaki Takahashi, Noriko Watanabe
Patented Case
View Patent ↗
Granted: Apr 24, 1990
Filed: Sep 13, 1989
Inventors
Noriaki Takahashi
Noriko Watanabe
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.