Granted Patent
Utility
US 4,174,289 · App. 05/937,691
Liquid detergent-bleach concentrates having high alkalinity
Inventors:
Malachi E. Sorgenfrei, Donald F. Garvin
Patented Case
View Patent ↗
Granted: Nov 13, 1979
Filed: Aug 28, 1978
Inventors
Malachi E. Sorgenfrei
Donald F. Garvin
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.