Granted Patent
Utility
US 5,186,040 · App. 07/798,090
Method for measuring the viscosity of a material
Inventors:
Annie Tissier, Jean-Francois Teissier
Patented Case
View Patent ↗
Granted: Feb 16, 1993
Filed: Nov 27, 1991
Inventors
Annie Tissier
Jean-Francois Teissier
Assignee (at issue)
France Telecom/CNET
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.