Granted Patent
Utility
US 6,251,271 · App. 09/445,867
Device for purifying a fluid
Inventor:
Peter Hagqvist
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Jan 12, 2000
Inventor
Peter Hagqvist
Assignee (at issue)
Aktiebolaget Electrolux
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.