Granted Patent
Utility
US 4,612,893 · App. 06/796,414
Fuel injection valve
Inventors:
Toru Ishibashi, Shigeo Taira
Patented Case
View Patent ↗
Granted: Sep 23, 1986
Filed: Nov 8, 1985
Inventors
Toru Ishibashi
Shigeo Taira
Assignee (at issue)
Diesel Kiki 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.