Granted Patent
Utility
US 5,385,539 · App. 07/906,926
Apparatus for monitoring hematocrit levels of blood
Inventor:
David Maynard
Patented Case
View Patent ↗
Granted: Jan 31, 1995
Filed: Jun 30, 1992
Inventor
David Maynard
Assignee (at issue)
Advanced Haemotechnologies
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.