Granted Patent
Utility
US 6,168,716 · App. 09/136,367
Cyclone separator having a variable transverse profile
Inventors:
Wayne Ernest Conrad, Helmut Gerhard Conrad, Ted Szylowiec
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Aug 19, 1998
Inventors
Wayne Ernest Conrad
Helmut Gerhard Conrad
Ted Szylowiec
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.