Granted Patent
Utility
US 5,478,446 · App. 08/269,098
Electrochemical process
Inventors:
Helena Falgen, Goran Sundstrom, Johan Landfors
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: Jun 30, 1994
Inventors
Helena Falgen
Goran Sundstrom
Johan Landfors
Assignee (at issue)
Eka Nobel 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.