Granted Patent
Utility
US 6,072,063 · App. 08/807,868
Low-melting ester quats
Inventors:
Oliver Eyrisch, Rudolf Aigner
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Feb 26, 1997
Inventors
Oliver Eyrisch
Rudolf Aigner
Assignee (at issue)
Clariant 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.