Granted Patent
Utility
US 4,448,889 · App. 06/389,895
Fluid analysis
Inventors:
Bruce Neri, Stanley M. Liffmann, Carolyn Bergkuist
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Jun 18, 1982
Inventors
Bruce Neri
Stanley M. Liffmann
Carolyn Bergkuist
Assignee (at issue)
Instrumentation Laboratory Company
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.