Granted Patent
Utility
US 4,190,644 · App. 05/902,894
Hair conditioning compounds
Inventors:
Harold A. Green, John J. Merianos, Alfonso N. Petrocci
Patented Case
View Patent ↗
Granted: Feb 26, 1980
Filed: May 4, 1978
Inventors
Harold A. Green
John J. Merianos
Alfonso N. Petrocci
Assignee (at issue)
Kewanee Industries, 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.