Granted Patent
Utility
US 4,960,708 · App. 07/257,017
Pressurized packaged reference liquid for blood gas analysis
Inventors:
John Zowtiak, Bruce I. Mayall
Patented Case
View Patent ↗
Granted: Oct 2, 1990
Filed: Oct 13, 1988
Inventors
John Zowtiak
Bruce I. Mayall
Assignee (at issue)
Baxter International 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.