Granted Patent
Utility
US 6,319,913 · App. 09/189,090
Penetration enhancing and irritation reducing systems
Inventors:
Vivien Mak, Stephen Grayson
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Nov 9, 1998
Inventors
Vivien Mak
Stephen Grayson
Assignee (at issue)
Cellegy 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.