Granted Patent
Utility
US 6,606,983 · App. 09/954,842
Ferrous pistons for diesel engines having EGR coating
Inventors:
Tom Bedwell, Carmo Ribeiro, Miguel N. D. De Azevedo
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Sep 18, 2001
Inventors
Tom Bedwell
Carmo Ribeiro
Miguel N. D. De Azevedo
Assignee (at issue)
Federal-Mogul Worldwide, Inc.
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.