Granted Patent
Utility
US 6,702,879 · App. 10/176,370
Air filtering material for air cleaning
Inventors:
Kazutaka Yokoyama, Daisuke Susa
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Jun 21, 2002
Inventors
Kazutaka Yokoyama
Daisuke Susa
Assignee (at issue)
HONDA MOTOR CO., LTD.
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.