Granted Patent
Utility
US 5,417,877 · App. 07/983,257
Organic stripping composition
Inventor:
Irl E. Ward
Patented Case
View Patent ↗
Granted: May 23, 1995
Filed: Nov 30, 1992
Inventor
Irl E. Ward
Assignee (at issue)
Ashland, 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.