Granted Patent
Utility
US 6,732,508 · App. 09/858,985
Exhaust system for an internal combustion engine and engine comprising the same
Inventors:
Thomas A. Flach, Bruce M. Chrisman
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: May 16, 2001
Inventors
Thomas A. Flach
Bruce M. Chrisman
Assignee (at issue)
Cooper Cameron 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.