Granted Patent
Utility
US 5,110,853 · App. 07/573,484
Freeze-thaw stable polyacrylamide emulsions
Inventors:
Nguyen Van-Det, Peter M. Robinson
Patented Case
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Granted: May 5, 1992
Filed: Aug 27, 1990
Inventors
Nguyen Van-Det
Peter M. Robinson
Assignee (at issue)
Exxon Chemical Patents, Inc.
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.