Granted Patent
Utility
US 5,756,859 · App. 08/760,357
Method for preparing and purifying 1,1,1-tris(4-hydroxyphenyl)ethane
Inventors:
Patrick Joseph McCloskey, Paul Dean Sybert, Julia Lam Lee, David Michel Dardaris
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Dec 4, 1996
Inventors
Patrick Joseph McCloskey
Paul Dean Sybert
Julia Lam Lee
David Michel Dardaris
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.