Granted Patent
Utility
US 5,644,607 · App. 08/590,557
Automatic refueling apparatus
Inventors:
Kunihiko Iwama, Yutaka Kometani
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Mar 21, 1996
Inventors
Kunihiko Iwama
Yutaka Kometani
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.