Granted Patent
Utility
US 6,139,547 · App. 08/934,688
Partially coated electrodes, manufacture and use
Inventors:
Michael D. Lontine, Gene H. Arts
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Aug 22, 1997
Inventors
Michael D. Lontine
Gene H. Arts
Assignee (at issue)
SHERWOOD SERVICES AG
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.