Granted Patent
Utility
US 6,533,834 · App. 09/815,042
Apparatus and method for separating particles from a cyclonic fluid flow
Inventors:
Wayne Ernest Conrad, Dave Petersen
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Mar 23, 2001
Inventors
Wayne Ernest Conrad
Dave Petersen
Assignee (at issue)
G.B.D. 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.