Granted Patent
Utility
US 6,818,693 · App. 09/994,774
Rubber compound for tire tread rubber
Inventors:
Gert Heinrich, Wolfram Herrmann, Norbert Kendziorra, Thomas Pietag, Carla Recker
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Nov 28, 2001
Inventors
Gert Heinrich
Wolfram Herrmann
Norbert Kendziorra
Thomas Pietag
Carla Recker
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.