Granted Patent
Utility
US 5,641,274 · App. 08/413,438
Two stage fuel injection pump with second stage located in the first stage inlet line
Inventors:
Kenichi Kubo, Tsumayoshi Motoyoshi, Jun Matsubara
Patented Case
View Patent ↗
Granted: Jun 24, 1997
Filed: Mar 30, 1995
Inventors
Kenichi Kubo
Tsumayoshi Motoyoshi
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.