Granted Patent
Utility
US 4,279,985 · App. 06/033,842
Photopolymer imaging using epoxy and bromine containing ethylenically unsaturated compounds
Inventors:
Saburo Nonogaki, Yoshio Hatano
Patented Case
View Patent ↗
Granted: Jul 21, 1981
Filed: Apr 27, 1979
Inventors
Saburo Nonogaki
Yoshio Hatano
Assignees (at issue)
Nippon Telegraph and Telephone Public Corporation
HITACHI, LTD.
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.