Granted Patent
Utility
US 6,339,369 · App. 09/159,137
Retrofittable vehicle collision warning apparatus
Inventor:
Ajit Paranjpe
Patented Case
View Patent ↗
Granted: Jan 15, 2002
Filed: Sep 23, 1998
Inventor
Ajit Paranjpe
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.