Granted Patent
Utility
US 4,822,883 · App. 07/087,473
Peroxide free radical initiators containing hindered amine light stabilizer groups
Inventor:
Terry N. Myers
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Aug 20, 1987
Inventor
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.