Granted Patent
Utility
US 6,554,059 · App. 09/901,107
Ceiling embedded type indoor unit
Inventors:
Yoshiki Hata, Takashi Sano, Shinichi Kosugi
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Jul 10, 2001
Inventors
Yoshiki Hata
Takashi Sano
Shinichi Kosugi
Assignee (at issue)
HITACHI, 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.