Granted Patent
Utility
US 6,825,302 · App. 10/648,180
Process for synthesizing tackifier resin
Inventors:
Kirkwood S. Cottman, Ching-Chian Chang
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Aug 26, 2003
Inventors
Kirkwood S. Cottman
Ching-Chian Chang
Assignee (at issue)
THE GOODYEAR TIRE & RUBBER 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.