Granted Patent
Utility
US 5,364,895 · App. 08/108,658
Hydrolytically stable pentaerythritol diphosphites
Inventors:
Donald Stevenson, Duong Nguyen, Arthur W. McRowe
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Aug 30, 1993
Inventors
Donald Stevenson
Duong Nguyen
Arthur W. McRowe
Assignee (at issue)
Dover Chemical 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.