Granted Patent
Utility
US 5,638,794 · App. 08/492,164
Servo valve type timer for fuel injection pump
Inventors:
Ken-ichi Kubo, Jun Matsubara
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Jun 19, 1995
Inventors
Ken-ichi Kubo
Jun Matsubara
Assignee (at issue)
Zexel GmbH
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.