Granted Patent
Utility
US 4,230,740 · App. 06/032,627
Heat stable, non-yellowing photopolymer compositions
Inventor:
Joseph Donald Moyer
Patented Case
View Patent ↗
Granted: Oct 28, 1980
Filed: Apr 23, 1979
Inventor
Joseph Donald Moyer
Assignee (at issue)
W. R. Grace & Co.
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.