Granted Patent
Utility
US 4,846,833 · App. 07/198,572
Sealed fresnel intraocular lens
Inventor:
J. Stuart Cumming
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: May 25, 1988
Inventor
J. Stuart Cumming
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.