Granted Patent
Utility
US 6,027,620 · App. 09/088,566
Filter press electrolyzer
Inventors:
John R. Jackson, Mark Ullmann
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: Jun 1, 1998
Inventors
John R. Jackson
Mark Ullmann
Assignee (at issue)
Huron Tech Corp
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.