Granted Patent
Utility
US 6,017,446 · App. 09/131,145
Floor mounted filtration system
Inventors:
Eugene H. Harms, Stephen N. McEwen, Michael Harms, John L. Creps
Patented Case
View Patent ↗
Granted: Jan 25, 2000
Filed: Aug 7, 1998
Inventors
Eugene H. Harms
Stephen N. McEwen
Michael Harms
John L. Creps
Assignee (at issue)
Henry Filters, 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.