Granted Patent
Utility
US 5,837,401 · App. 08/273,756
Additives for lubricating agents used in the lamination of lithium sheets into thin films
Inventors:
Michel Gauthier, Patrick Bouchard, Paul-Emile Guerin, Michel Armand
Patented Case
View Patent ↗
Granted: Nov 17, 1998
Filed: Jul 12, 1994
Inventors
Michel Gauthier
Patrick Bouchard
Paul-Emile Guerin
Michel Armand
Assignee (at issue)
Hydro-Quebec
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.