Granted Patent
Utility
US 6,257,975 · App. 09/484,013
Ventilation device for vehicles
Inventor:
Stefan Giez
Patented Case
View Patent ↗
Granted: Jul 10, 2001
Filed: Jan 18, 2000
Inventor
Stefan Giez
Assignee (at issue)
Daimlerchrysler AG
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.