Granted Patent
Utility
US 4,248,960 · App. 05/871,748
Radiation responsive relief imageable plastic laminate
Inventors:
Paul R. Hein, Michael Wen-Chein Yang, Robert A. Irvin, Steven Earl Bauer, Roland L. Orem
Patented Case
View Patent ↗
Granted: Feb 3, 1981
Filed: Jan 23, 1978
Inventors
Paul R. Hein
Michael Wen-Chein Yang
Robert A. Irvin
Steven Earl Bauer
Roland L. Orem
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.