Granted Patent
Utility
US 6,569,219 · App. 09/854,366
Air filter with serviceable filter media
Inventors:
Michael J. Connor, Kent J. Kallsen, Rebecca Beier, Carl P. Harris, Mark V. Holzmann, Robert A. Bannister
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: May 11, 2001
Inventors
Michael J. Connor
Kent J. Kallsen
Rebecca Beier
Carl P. Harris
Mark V. Holzmann
Robert A. Bannister
Assignee (at issue)
NELSON industrial 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.