Granted Patent
Utility
US 4,333,921 · App. 06/193,217
Hair cleansing conditioner with lathering action
Inventors:
Oscar B. Luedicke, Thad Domzalski, David C. Zajac
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Oct 2, 1980
Inventors
Oscar B. Luedicke
Thad Domzalski
David C. Zajac
Assignee (at issue)
American Cyanamid Company
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.