Granted Patent
Utility
US 6,640,617 · App. 10/162,811
Apparatus and a method for determining the viscosity of a fluid
Inventors:
Reto Schöb, Simon Huwyler
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Jun 4, 2002
Inventors
Reto Schöb
Simon Huwyler
Assignee (at issue)
Levitronix 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.