Granted Patent
Utility
US 5,164,356 · App. 07/791,754
Thermally-responsive record material
Inventor:
Dean G. Dalebroux
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Nov 12, 1991
Inventor
Dean G. Dalebroux
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.