Granted Patent
Utility
US 3,969,282 · App. 05/535,260
Acidic surfactant composition, stock surfactant solution prepared therefrom, and method of washing soiled substrates employing the same
Inventors:
Frank R. Kappler, John D. Ciko, John J. Cramer
Patented Case
View Patent ↗
Granted: Jul 13, 1976
Filed: Dec 23, 1974
Inventors
Frank R. Kappler
John D. Ciko
John J. Cramer
Assignee (at issue)
BASF Wyandotte Corporation
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.