Granted Patent
Utility
US 5,019,350 · App. 06/829,350
Fluorescent polymers
Inventors:
David Rhum, Richard S. Matthews
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Feb 13, 1986
Inventors
David Rhum
Richard S. Matthews
Assignee (at issue)
Pfizer Hospital Products Group, 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.