Granted Patent
Utility
US 6,162,328 · App. 08/940,514
Method for surface sizing paper with cellulose reactive and cellulose non-reactive sizes, and paper prepared thereby
Inventors:
Marco Franco Cenisio, Edwin R. Hensema, Andrew R. Mears, Daniel F. Varnell
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Sep 30, 1997
Inventors
Marco Franco Cenisio
Edwin R. Hensema
Andrew R. Mears
Daniel F. Varnell
Assignee (at issue)
HERCULES 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.