Granted Patent
Utility
US 5,438,271 · App. 08/343,363
Biosensing meter which detects proper electrode engagement and distinguishes sample and check strips
Inventors:
Bradley E. White, Robert A. Parks, Paul G. Ritchie
Patented Case
View Patent ↗
Granted: Aug 1, 1995
Filed: Nov 22, 1994
Inventors
Bradley E. White
Robert A. Parks
Paul G. Ritchie
Assignee (at issue)
Boehringer Mannheim GmbH
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.