Granted Patent
Utility
US 5,578,420 · App. 08/456,053
Process for producing a flexographic printing plate
Inventors:
Toshiya Takagi, Hiroshi Komano
Patented Case
View Patent ↗
Granted: Nov 26, 1996
Filed: May 31, 1995
Inventors
Toshiya Takagi
Hiroshi Komano
Assignee (at issue)
TOKYO OHKA KOGYO CO., 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.