Granted Patent
Utility
US 4,689,290 · App. 06/868,846
Photosensitive elastomeric polymer composition for flexographic printing plate
Inventor:
John R. Worns
Patented Case
View Patent ↗
Granted: Aug 25, 1987
Filed: May 29, 1986
Inventor
John R. Worns
Assignee (at issue)
Uniroyal Plastics Company, Inc.
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.