Granted Patent
Utility
US 6,203,894 · App. 09/305,922
Basecoated substrate for an inkjet recording sheet
Inventors:
Hung-Tai Chao, Michael L. DeMatte
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: May 6, 1999
Inventors
Hung-Tai Chao
Michael L. DeMatte
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.