Granted Patent
Utility
US 5,670,547 · App. 08/430,154
Moisturizing vehicle for topical application of vitamin A acid
Inventors:
Elliott Milstein, Nathan Milstein
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Apr 26, 1995
Inventors
Elliott Milstein
Nathan Milstein
Assignee (at issue)
Dow Pharmaceutical Sciences, 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.