Granted Patent
Utility
US 5,846,601 · App. 08/583,081
Use of selected polyvinyl acetate dispersions for the surface stabilization of sand and/or soil
Inventors:
Wolfgang Ritter, Stephan von Tapavicza, Heinz-Joachim Muller, Hartmut Busching
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: Jan 22, 1996
Inventors
Wolfgang Ritter
Stephan von Tapavicza
Heinz-Joachim Muller
Hartmut Busching
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.