Granted Patent
Utility
US 6,559,097 · App. 09/950,194
Thermally-responsive record material
Inventors:
Ponnampalam Mathiaparanam, Mark Robert Fisher, John Charles DeBraal
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Sep 10, 2001
Inventors
Ponnampalam Mathiaparanam
Mark Robert Fisher
John Charles DeBraal
Assignee (at issue)
Appleton Papers Inc.
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.