Granted Patent
Utility
US 6,573,625 · App. 09/818,623
Motor device having water-proof brush holder
Inventors:
Fumihiro Shimizu, Hiroaki Yamamoto, Katsuhiko Torii, Kenji Kashima, Kengo Yamamura
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Mar 28, 2001
Inventors
Fumihiro Shimizu
Hiroaki Yamamoto
Katsuhiko Torii
Kenji Kashima
Kengo Yamamura
Assignee (at issue)
ASMO 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.