Granted Patent
Utility
US 6,110,477 · App. 09/183,034
Stabilization of ascorbic acid, ascorbic acid derivatives and/or extracts containing ascorbic acid for topical use
Inventors:
Steven M. Hernandez, Burt Shaffer
Patented Case
View Patent ↗
Granted: Aug 29, 2000
Filed: Oct 30, 1998
Inventors
Steven M. Hernandez
Burt Shaffer
Assignee (at issue)
Topix Pharmaceuticals, 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.