Granted Patent
Utility
US 5,984,889 · App. 08/832,460
Apparatus and method for delivering viscoelastic material to an eye
Inventors:
F. Richard Christ, Edward Zaleski
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Apr 2, 1997
Inventors
F. Richard Christ
Edward Zaleski
Assignee (at issue)
ALLERGAN SALES, LLC
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.