Granted Patent
Utility
US 5,166,176 · App. 07/328,284
Composition for healing damaged skin
Inventors:
Zein E. Obagi, George H. Michel
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Mar 24, 1989
Inventors
Zein E. Obagi
George H. Michel
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.