Granted Patent
Utility
US 4,929,654 · App. 07/253,168
Cyclic phosphites and stabilized polymeric compositions
Inventors:
Richard H. S. Wang, Garry L. Myers
Patented Case
View Patent ↗
Granted: May 29, 1990
Filed: Oct 4, 1988
Inventors
Richard H. S. Wang
Garry L. Myers
Assignee (at issue)
EASTMAN KODAK COMPANY
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.