Granted Patent
Utility
US 5,294,347 · App. 07/992,276
Dispersion polymers for ethylene quench water clarification
Inventors:
Norman Edward Byrne, Belinda K. Williams, Sherri L. Fisher
Patented Case
View Patent ↗
Granted: Mar 15, 1994
Filed: Dec 16, 1992
Inventors
Norman Edward Byrne
Belinda K. Williams
Sherri L. Fisher
Assignee (at issue)
Nalco Chemical Company
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.