Granted Patent
Utility
US 5,213,897 · App. 07/679,872
Epoxy resins containing bound light stabilizing groups
Inventors:
Arthur L. Baron, Ronald E. MacLeay, Jennifer P. Kmiec
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Apr 3, 1991
Inventors
Arthur L. Baron
Ronald E. MacLeay
Jennifer P. Kmiec
Assignee (at issue)
Elf Atochem North America, 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.