Granted Patent
Utility
US 5,313,264 · App. 07/681,533
Optical biosensor system
Inventors:
Bengt Ivarsson, Jonsson Ulf, Stefan Sjolander, Ralph Ståhlberg, Håkan Sjödin
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: May 10, 1991
Inventors
Bengt Ivarsson
Jonsson Ulf
Stefan Sjolander
Ralph Ståhlberg
Håkan Sjödin
Assignee (at issue)
Pharmacia Biosensor 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.