Granted Patent
Utility
US 4,924,968 · App. 07/227,807
Stamp formed muffler with reinforced outer shell
Inventors:
Walter G. Moring, III, Jon W. Harwood
Patented Case
View Patent ↗
Granted: May 15, 1990
Filed: Aug 3, 1988
Inventors
Walter G. Moring, III
Jon W. Harwood
Assignee (at issue)
AP Parts Manufacturing Company
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.