Granted Patent
Utility
US 6,180,921 · App. 09/416,521
Windshield heating device
Inventor:
Premakaran T. Boaz
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Oct 8, 1999
Inventor
Premakaran T. Boaz
Assignee (at issue)
Visteon Global Technologies, 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.