Granted Patent
Utility
US 4,589,679 · App. 06/615,347
Safety steering column made of fiber-reinforced synthetic materials
Inventors:
Peter Wackerle, Ralf-Thilo Schulz, Franz Sperber, Wolfram Koletzko, Wolfgang Prochaska
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: May 30, 1984
Inventors
Peter Wackerle
Ralf-Thilo Schulz
Franz Sperber
Wolfram Koletzko
Wolfgang Prochaska
Assignee (at issue)
Messerschmitt-Boelkow-Blohm Gesellschaft mit beschraenkter Haftung
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.