Granted Patent
Utility
US 6,521,613 · App. 09/829,641
Lactam compounds for penetration enhancement
Inventor:
Gary Ewing
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Apr 10, 2001
Inventor
Gary Ewing
Assignee (at issue)
Allergan, 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.