Granted Patent
Utility
US 5,877,142 · App. 08/734,798
Use of xanthan gum to improve gloss retention of surfactants and surfactant-based hard surface cleaners
Inventors:
Stephen F. Gross, Timothy C. Morris
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Oct 23, 1996
Inventors
Stephen F. Gross
Timothy C. Morris
Assignee (at issue)
Henkel Limited
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.