Granted Patent
Utility
US 6,597,980 · App. 09/983,780
Road friction coefficients estimating apparatus for vehicle
Inventor:
Masaru Kogure
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Oct 25, 2001
Inventor
Masaru Kogure
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.