Granted Patent
Utility
US 6,541,538 · App. 09/167,878
Resin for ink-jet printing ink
Inventors:
Michael D. Matzinger, G. Frederick Hutter
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Oct 7, 1998
Inventors
Michael D. Matzinger
G. Frederick Hutter
Assignee (at issue)
Westvaco 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.