Granted Patent
Utility
US 5,414,164 · App. 08/101,127
Chlorination process
Inventors:
Stephen Martin Brown, Janet C. Glass, Gary N. Sheldrake
Patented Case
View Patent ↗
Granted: May 9, 1995
Filed: Aug 2, 1993
Inventors
Stephen Martin Brown
Janet C. Glass
Gary N. Sheldrake
Assignee (at issue)
Zeneca Limited Imperial Chemical House
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.