Granted Patent
Utility
US 4,935,005 · App. 07/304,711
Opthalmic fluid flow control system
Inventor:
Stephen W. Haines
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Feb 1, 1989
Inventor
Stephen W. Haines
Assignee (at issue)
NESTLE S.A.
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.