Granted Patent
Utility
US 5,669,851 · App. 08/625,892
Automatic gear change control method for a motor vehicle automatic discrete step gearbox
Inventor:
Frank Tietze
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Apr 1, 1996
Inventor
Frank Tietze
Assignee (at issue)
MERCEDES-BENZ GROUP 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.