Granted Patent
Utility
US 6,132,436 · App. 09/118,492
Self-regulating phaco sleeve to reduce tissue burn
Inventor:
Valdemar Portney
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Jul 17, 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.