Granted Patent
Utility
US 4,426,311 · App. 06/333,946
Methylene chloride-methane sulfonic acid stripping compositions and methods for using same
Inventor:
John E. Vander Mey
Patented Case
View Patent ↗
Granted: Jan 17, 1984
Filed: Dec 23, 1981
Inventor
John E. Vander Mey
Assignee (at issue)
ALLIED CONSULTING, 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.