Granted Patent
Utility
US 6,642,850 · App. 09/644,964
Indicating device
Inventors:
Heinrich Noll, Helmut Wolf, Thorsten Wend, Matthias Rein
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Aug 23, 2000
Inventors
Heinrich Noll
Helmut Wolf
Thorsten Wend
Matthias Rein
Assignee (at issue)
Mannesmann VDO 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.