Granted Patent
Utility
US 5,124,227 · App. 07/494,212
Protective overcoats for diazo type layers
Inventors:
George R. Hodgins, Marie B. Ray
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: Mar 15, 1990
Inventors
George R. Hodgins
Marie B. Ray
Assignee (at issue)
Graphics Technology International 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.