Granted Patent
Utility
US 5,878,772 · App. 08/615,818
Tank truck fuel delivery system having a selective dye injection system
Inventor:
Stephen Belyea
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Mar 14, 1996
Inventor
Stephen Belyea
Assignee (at issue)
Irving Oil Limited
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.