Granted Patent
Utility
US 5,491,268 · App. 08/311,335
Process for removal of acidic compounds from phenol process streams
Inventor:
Michael J. Cipullo
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Sep 23, 1994
Inventor
Michael J. Cipullo
Assignee (at issue)
General Electric Company
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.