Granted Patent
Utility
US 6,140,413 · App. 09/280,765
Silicone softener viscosity reducer
Inventors:
Lindsay Castles, Steve C. James, John Stewart
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Mar 29, 1999
Inventors
Lindsay Castles
Steve C. James
John Stewart
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.