Granted Patent
Utility
US 5,962,018 · App. 09/069,089
Method of treating the skin with organic acids in anhydrous microsphere delivery systems
Inventors:
Ernest S. Curtis, Robert Kalafsky, Elinor R. Kaplan
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Apr 28, 1998
Inventors
Ernest S. Curtis
Robert Kalafsky
Elinor R. Kaplan
Assignee (at issue)
Avon Products, 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.