Granted Patent
Utility
US 6,556,912 · App. 09/883,783
Road friction coefficient estimating apparatus
Inventor:
Koji Matsuno
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Jun 18, 2001
Inventor
Koji Matsuno
Assignee (at issue)
Fuji Jukogyo 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.