Granted Patent
Utility
US 6,338,441 · App. 09/601,341
Automatic painting device
Inventors:
Norio Umezawa, Toshio Hosoda, Osamu Yoshida, Toshiaki Nakano
Patented Case
View Patent ↗
Granted: Jan 15, 2002
Filed: Aug 17, 2000
Inventors
Norio Umezawa
Toshio Hosoda
Osamu Yoshida
Toshiaki Nakano
Assignee (at issue)
ABB K.K.
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.