Granted Patent
Utility
US 5,869,029 · App. 08/668,181
Dispersible water-soluble or water-swellable polymers and process for making toothpastes containing them
Inventors:
Arne Graff-Andersen, Jashawant J. Modi
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Jun 21, 1996
Inventors
Arne Graff-Andersen
Jashawant J. Modi
Assignee (at issue)
HERCULES LLC
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.