Granted Patent
Utility
US 5,401,508 · App. 08/055,933
Hydrogel compositions and structures made from same
Inventor:
Nick Manesis
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Apr 30, 1993
Inventor
Nick Manesis
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.