Granted Patent
Utility
US 4,609,067 · App. 06/732,243
Heat shield for a vehicular muffler
Inventor:
Charles J. Gonwa
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: May 8, 1985
Inventor
Charles J. Gonwa
Assignee (at issue)
Maremont Corporation
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.