Granted Patent
Utility
US 6,562,888 · App. 09/123,228
Light-colored rosin esters and adhesive compositions
Inventors:
Charles R. Frihart, Nelson E. Lawson, Brett Neumann
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Jul 27, 1998
Inventors
Charles R. Frihart
Nelson E. Lawson
Brett Neumann
Assignee (at issue)
Arizona Chemical Company, LLC
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.