Granted Patent
Utility
US 4,830,754 · App. 07/081,940
Method of recovering amine in a process for breaking emulsions and sludges
Inventors:
James C. Nowak, Mark K. Tose
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Aug 3, 1987
Inventors
James C. Nowak
Mark K. Tose
Assignee (at issue)
Resources Conservation, Inc.
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.