Granted Patent
Utility
US 6,211,491 · App. 09/435,609
Anti-fogging glass
Inventor:
Naokazu Mazaki
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Nov 8, 1999
Inventor
Naokazu Mazaki
Assignee (at issue)
ASAHI GLASS CO., LTD.
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.