Granted Patent
Utility
US 4,724,124 · App. 06/913,128
Use of alkenylsuccinic acid half-amides as anti-corrosion agents
Inventors:
Werner Ritschel, Horst Lorke
Patented Case
View Patent ↗
Granted: Feb 9, 1988
Filed: Sep 26, 1986
Inventors
Werner Ritschel
Horst Lorke
Assignee (at issue)
Hoechst 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.