Granted Patent
Utility
US 6,443,192 · App. 09/935,741
Vehicle brake flush method and apparatus
Inventors:
Harold E. Erwin, Abram B. Kuipers
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Aug 22, 2001
Inventors
Harold E. Erwin
Abram B. Kuipers
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.