Granted Patent
Utility
US 6,607,572 · App. 09/986,076
Cyclonic separating apparatus
Inventors:
Peter David Gammack, Remco Douwinus Vuuk, Ricardo Gomiciaga Pereda
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Nov 7, 2001
Inventors
Peter David Gammack
Remco Douwinus Vuuk
Ricardo Gomiciaga Pereda
Assignee (at issue)
Dyson 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.