Granted Patent
Utility
US 5,464,472 · App. 08/265,206
Fine aqueous dispersion of an organophilic sheet silicate
Inventors:
Ute Horn, Guido Dessauer
Patented Case
View Patent ↗
Granted: Nov 7, 1995
Filed: Jun 24, 1994
Inventors
Ute Horn
Guido Dessauer
Assignee (at issue)
Hoechst GmbH
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.