Granted Patent
Utility
US 6,345,540 · App. 09/310,126
Fluid flow meter
Inventors:
Göran Cewers, Thomas Laurell, Johan Drott
Patented Case
View Patent ↗
Granted: Feb 12, 2002
Filed: May 12, 1999
Inventors
Göran Cewers
Thomas Laurell
Johan Drott
Assignee (at issue)
Siemens Elema 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.