Granted Patent
Utility
US 6,582,489 · App. 10/022,534
Method and apparatus of particle transfer in multi-stage particle separators
Inventor:
Wayne Ernest Conrad
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Dec 20, 2001
Inventor
Wayne Ernest Conrad
Assignee (at issue)
Polar Light Limited
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.