Granted Patent
Utility
US 6,572,416 · App. 09/682,976
Three-phase connector for electric vehicle drivetrain
Inventors:
Ajay V. Patwardhan, John Franklin
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Nov 5, 2001
Inventors
Ajay V. Patwardhan
John Franklin
Assignee (at issue)
BALLARD POWER SYSTEMS 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.