Granted Patent
Utility
US 6,277,907 · App. 09/188,426
Thermoplastic resins stabilized by blends of sterically hindered phenols, secondary amines, and thioethers
Inventor:
Michael E. Gelbin
Patented Case
View Patent ↗
Granted: Aug 21, 2001
Filed: Nov 9, 1998
Inventor
Michael E. Gelbin
Assignee (at issue)
Uniroyal Chemical Company, Inc.
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.