Granted Patent
Utility
US 5,882,494 · App. 08/519,693
Polyurethane/polyurea compositions containing silicone for biosensor membranes
Inventor:
William P. Van Antwerp
Patented Case
View Patent ↗
Granted: Mar 16, 1999
Filed: Aug 28, 1995
Inventor
William P. Van Antwerp
Assignee (at issue)
MiniMed, 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.