Granted Patent
Utility
US 6,094,926 · App. 09/389,021
Electricity storage type air conditioning apparatus and cooling/heating source device therefor
Inventors:
Susumu Nakayama, Kensaku Oguni, Hiromu Yasuda, Kenichi Nakamura, Yasutaka Yoshida, Tomomi Umeda
Patented Case
View Patent ↗
Granted: Aug 1, 2000
Filed: Sep 2, 1999
Inventors
Susumu Nakayama
Kensaku Oguni
Hiromu Yasuda
Kenichi Nakamura
Yasutaka Yoshida
Tomomi Umeda
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.