Granted Patent
Utility
US 6,090,184 · App. 09/032,589
Filter system
Inventor:
Mark Cartellone
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Feb 27, 1998
Inventor
Mark Cartellone
Assignee (at issue)
HMI Industries, Inc.
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.