Granted Patent
Utility
US 5,952,077 · App. 08/860,849
Surfactant compositions
Inventors:
David John Booth, Martin Williams
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Aug 26, 1997
Inventors
David John Booth
Martin Williams
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES 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.