Granted Patent
Utility
US 4,870,307 · App. 07/180,935
Block-mounted water cooled ac generator
Inventors:
Yutaka Kitamura, Hiroaki Aso
Patented Case
View Patent ↗
Granted: Sep 26, 1989
Filed: Apr 13, 1988
Inventors
Yutaka Kitamura
Hiroaki Aso
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.