Granted Patent
Utility
US 6,231,132 · App. 09/107,470
Brake pressure control device for vehicle including brake pressure equalizing device
Inventor:
Kazuya Watanabe
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Jun 30, 1998
Inventor
Kazuya Watanabe
Assignee (at issue)
AISIN SEIKI KABUSHIKI KAISHA
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.