Granted Patent
Utility
US 5,635,331 · App. 08/322,588
Substrate and a color proofing article having release agent/adhesive mixture coated thereon
Inventors:
Steven L. Kangas, Charles W. Graves, Ramesh C. Kumar
Patented Case
View Patent ↗
Granted: Jun 3, 1997
Filed: Oct 13, 1994
Inventors
Steven L. Kangas
Charles W. Graves
Ramesh C. Kumar
Assignee (at issue)
Minnesota Mining and Manufacturing 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.