Granted Patent
Utility
US 4,739,008 · App. 06/932,542
Bi-phase initiator system for water-in-oil emulsion polymers
Inventors:
Peter M. Robinson, Nguyen Van-Det
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Nov 18, 1986
Inventors
Peter M. Robinson
Nguyen Van-Det
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.