Granted Patent
Utility
US 5,866,523 · App. 08/970,695
Resinous composition cleaner
Inventors:
Umit Turunc, Patricia A. Popowich
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Nov 14, 1997
Inventors
Umit Turunc
Patricia A. Popowich
Assignee (at issue)
Betzdearborn, 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.