Granted Patent
Utility
US 4,784,585 · App. 07/069,995
Electric air compressor
Inventors:
Yasuhisa Hata, Tikao Enokihata
Patented Case
View Patent ↗
Granted: Nov 15, 1988
Filed: Jul 6, 1987
Inventors
Yasuhisa Hata
Tikao Enokihata
Assignee (at issue)
Nippon Air Brake 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.