Granted Patent
Utility
US 6,659,146 · App. 10/012,350
Motor vehicle tire with a tread profile for a superior grip on snow and ice
Inventors:
Helge Dörrie, Franz Diensthuber
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Dec 12, 2001
Inventors
Helge Dörrie
Franz Diensthuber
Assignee (at issue)
Continental 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.