Granted Patent
Utility
US 4,665,741 · App. 06/842,736
Method of hair damage assessment
Inventors:
Bernard L. Kabacoff, Fred Markrow, Alok Govil
Patented Case
View Patent ↗
Granted: May 19, 1987
Filed: Mar 21, 1986
Inventors
Bernard L. Kabacoff
Fred Markrow
Alok Govil
Assignee (at issue)
Revlon
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.