Granted Patent
Utility
US 5,900,539 · App. 08/900,855
Device and method for determining rheological quality of non-newtonian liquids
Inventors:
Bernard Tremblay, Mario De Rocco, Rodney K. Ridley, Surindar Pal Singh, Kerry Andrew Scott
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Jul 25, 1997
Inventors
Bernard Tremblay
Mario De Rocco
Rodney K. Ridley
Surindar Pal Singh
Kerry Andrew Scott
Assignee (at issue)
Alberta Research Council Inc.
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.