Granted Patent
Utility
US 5,830,992 · App. 08/764,783
Light color, color stable rosin esters and methods for preparing same
Inventor:
David Whalen
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Dec 12, 1996
Inventor
David Whalen
Assignee (at issue)
Union Camp Corporation
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.