Granted Patent
Utility
US 4,770,822 · App. 07/084,858
Diaphragm carburetor for internal combustion engine
Inventor:
Yoshimi Sejimo
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Aug 13, 1987
Inventor
Yoshimi Sejimo
Assignee (at issue)
Walbro Far East, Inc.
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.