Granted Patent
Utility
US 6,476,964 · App. 09/736,016
Enamelled projection screen and method for the manufacturing thereof
Inventor:
Leo Gypen
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Dec 18, 2000
Inventor
Leo Gypen
Assignee (at issue)
POLYVISION, naamloze vennootschap
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.