Granted Patent
Utility
US 4,240,291 · App. 05/958,390
Flow meter
Inventors:
Roland Andersson, Lars-Goran Olsson, Bengt Paulsson
Patented Case
View Patent ↗
Granted: Dec 23, 1980
Filed: Nov 7, 1978
Inventors
Roland Andersson
Lars-Goran Olsson
Bengt Paulsson
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.