Granted Patent
Utility
US 5,234,072 · App. 07/909,227
Drive assembly for a four wheel drive vehicle
Inventor:
Adrian Chludek
Patented Case
View Patent ↗
Granted: Aug 10, 1993
Filed: Jul 2, 1992
Inventor
Adrian Chludek
Assignee (at issue)
Viscodrive GmbH
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.