Granted Patent
Utility
US 5,507,703 · App. 08/092,135
Differential drive
Inventors:
Heinz Madsack, Adrian Chludek
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: Jul 15, 1993
Inventors
Heinz Madsack
Adrian Chludek
Assignee (at issue)
GKN 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.