Granted Patent
Utility
US 6,253,750 · App. 09/232,419
Model based purge system
Inventors:
Mark J. Duty, Timothy A. Coatesworth
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Jan 15, 1999
Inventors
Mark J. Duty
Timothy A. Coatesworth
Assignee (at issue)
Daimlerchrysler AG
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.