Granted Patent
Utility
US 5,736,690 · App. 08/785,035
Muffler with catalytic converter
Inventor:
Egon Karlsson
Patented Case
View Patent ↗
Granted: Apr 7, 1998
Filed: Jan 17, 1997
Inventor
Egon Karlsson
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.