Granted Patent
Utility
US 6,602,329 · App. 10/227,843
Dust collector
Inventors:
Kazutaka Tomimatsu, Yasutoshi Ueda
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Aug 27, 2002
Inventors
Kazutaka Tomimatsu
Yasutoshi Ueda
Assignee (at issue)
MITSUBISHI ELECTRIC CORPORATION
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.