Granted Patent
Utility
US 6,084,013 · App. 09/232,892
Stabilizer system for chlorine-containing polymers
Inventor:
Wolfgang Wehner
Patented Case
View Patent ↗
Granted: Jul 4, 2000
Filed: Jan 15, 1999
Inventor
Wolfgang Wehner
Assignee (at issue)
Witco Vinyl Additives GmbH
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.