Granted Patent
Utility
US 4,565,065 · App. 06/593,236
Exhaust-gas particle treating device for internal-combustion engine
Inventors:
Hideyuki Kimura, Hitoshi Tomita
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: Mar 26, 1984
Inventors
Hideyuki Kimura
Hitoshi Tomita
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.