Granted Patent
Utility
US 5,496,491 · App. 08/446,435
Organic stripping composition
Inventors:
Irl E. Ward, Francis W. Michelotti
Patented Case
View Patent ↗
Granted: Mar 5, 1996
Filed: May 22, 1995
Inventors
Irl E. Ward
Francis W. Michelotti
Assignee (at issue)
Ashland Oil, 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.