Granted Patent
Utility
US 6,640,611 · App. 10/254,240
Method and apparatus for checking sensors
Inventors:
Bjorn Ericson, Per-Ola Wictor
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Sep 25, 2002
Inventors
Bjorn Ericson
Per-Ola Wictor
Assignee (at issue)
Gambro AB
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.