Granted Patent
Utility
US 5,226,920 · App. 07/943,294
Method and arrangement for adjusting air/fuel ratio of an i. c. engine
Inventor:
Bo C. Andreasson
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Sep 10, 1992
Inventor
Bo C. Andreasson
Assignee (at issue)
Aktiebolaget Electrolux
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.