Granted Patent
Utility
US 4,886,488 · App. 07/229,746
Glaucoma drainage the lacrimal system and method
Inventor:
Thomas C. White
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Aug 4, 1988
Inventor
Thomas C. White
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.