Granted Patent
Utility
US 6,251,292 · App. 09/434,182
Method of preventing air from becoming entrapped within a filtration device
Inventor:
Peter Zuk, Jr.
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Nov 4, 1999
Inventor
Peter Zuk, Jr.
Assignee (at issue)
Hemasure, 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.