Granted Patent
Utility
US 6,808,558 · App. 10/461,639
Bituminous product and process for preparing it
Inventors:
Dominique Dupuis, Gilles Orange
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Jun 13, 2003
Inventors
Dominique Dupuis
Gilles Orange
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.