Granted Patent
Utility
US 5,643,586 · App. 08/525,977
Topical compositions and methods for treatment of skin damage and aging using catecholamines and related compounds
Inventor:
Nicholas V. Perricone
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Sep 7, 1995
Inventor
Nicholas V. Perricone
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.