Granted Patent
Utility
US 6,231,645 · App. 09/361,126
Apparatus and method for separating particles from a cyclonic fluid flow utilizing a movable access member associated with a cyclonic separator
Inventors:
Wayne Ernest Conrad, Dave Petersen
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Jul 27, 1999
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.