Granted Patent
Utility
US 6,311,548 · App. 09/382,527
Method of validating a diagnostic leak detection test for a fuel tank
Inventors:
Hallett D. Breidenbach, Kenneth M. Simpson, Stephen F. Majkowski
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Aug 25, 1999
Inventors
Hallett D. Breidenbach
Kenneth M. Simpson
Stephen F. Majkowski
Assignee (at issue)
Delphi Technologies
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.