Granted Patent
Utility
US 5,569,709 · App. 08/364,862
Grafting, phase-inversion and cross-linking controlled multi-stage bulk process for making ABS graft copolymers
Inventors:
Chen-Youn Sue, Robert Koch, John E. Pace, Gregory R. Prince
Patented Case
View Patent ↗
Granted: Oct 29, 1996
Filed: Dec 27, 1994
Inventors
Chen-Youn Sue
Robert Koch
John E. Pace
Gregory R. Prince
Assignee (at issue)
General Electric 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.