Granted Patent
Utility
US 4,770,713 · App. 07/158,316
Stripping compositions containing an alkylamide and an alkanolamine and use thereof
Inventor:
Irl E. Ward
Patented Case
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Granted: Sep 13, 1988
Filed: Feb 22, 1988
Inventor
Irl E. Ward
Assignee (at issue)
Advanced Chemical Technologies, 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.