Granted Patent
Utility
US 6,003,989 · App. 09/137,594
Ink jet recording sheet
Inventors:
Yung T. Chen, Gerald P. Harwood, Jr., Michael S. Viola
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Aug 21, 1998
Inventors
Yung T. Chen
Gerald P. Harwood, Jr.
Michael S. Viola
Assignee (at issue)
Polaroid 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.