Granted Patent
Utility
US 5,874,492 · App. 08/804,319
Process for the preparation of bitumen-polymer compositions, application of the compositions obtained to the production of coatings and polymer master solution for obtaining the said compositions
Inventors:
Jean-Pascal Planche, Laurent Germanaud, Pascal Nicol, François Travers
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Feb 21, 1997
Inventors
Jean-Pascal Planche
Laurent Germanaud
Pascal Nicol
François Travers
Assignee (at issue)
Koch Material Company
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.