Granted Patent
Utility
US 5,281,128 · App. 07/617,977
Multistage process for combusting fuel mixtures
Inventors:
Ralph A. Dalla Betta, Kazunori Tsurumi, Nobuyasu Ezawa
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Nov 26, 1990
Inventors
Ralph A. Dalla Betta
Kazunori Tsurumi
Nobuyasu Ezawa
Assignees (at issue)
Catalytic, Inc.
TANAKA KIKINZOKU KOGYO K.K.
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.