Granted Patent
Utility
US 5,550,264 · App. 08/274,593
Process for the removal of dissolved metallic catalyst from ester products
Inventor:
A. Fred Elsasser
Patented Case
View Patent ↗
Granted: Aug 27, 1996
Filed: Jul 13, 1994
Inventor
A. Fred Elsasser
Assignee (at issue)
Henkel Limited
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.