Granted Patent
Utility
US 6,024,447 · App. 09/014,310
Enhanced monofocal ophthalmic lens
Inventor:
Valdemar Portney
Patented Case
View Patent ↗
Granted: Feb 15, 2000
Filed: Jan 27, 1998
Inventor
Valdemar Portney
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.