Granted Patent
Utility
US 4,857,596 · App. 07/084,537
Polymer bound antioxidant stabilizers
Inventors:
Ronald E. MacLeay, Terry N. Myers
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: Aug 12, 1987
Inventors
Ronald E. MacLeay
Terry N. Myers
Assignee (at issue)
Pennwalt Corporation
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.