Granted Patent
Utility
US 4,882,374 · App. 07/306,130
Dioxaphosphorinane compounds and polyolefin compositions sabilized therewith
Inventors:
Richard H. S. Wang, Garry L. Myers
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Feb 6, 1989
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.