Granted Patent
Utility
US 5,989,533 · App. 08/897,955
Hair conditioning compositions containing alpha or beta hydroxy acid esters
Inventors:
Charlene Patricia Deegan, Geoffrey Hawkins
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Jul 21, 1997
Inventors
Charlene Patricia Deegan
Geoffrey Hawkins
Assignee (at issue)
Revlon Consumer Products 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.