Granted Patent
Utility
US 6,559,425 · App. 09/945,335
Method and a device for the thermal treatment of friction lining surfaces
Inventor:
Hansjorg Grimme
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Aug 31, 2001
Inventor
Hansjorg Grimme
Assignee (at issue)
AlliedSignal Bremsbelag 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.