Granted Patent
Utility
US 4,918,124 · App. 06/931,429
Novel composition suitable as stabilizers for polymers
Inventors:
Herbert Eichenauer, Alfred Pischtschan, Karl-Heinz Ott
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: Nov 17, 1986
Inventors
Herbert Eichenauer
Alfred Pischtschan
Karl-Heinz Ott
Assignee (at issue)
Bayer Aktiengesellschaft
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.