Granted Patent
Utility
US 6,299,149 · App. 09/719,078
Springrate controlled motor bearing
Inventors:
Metin Ersoy, Hubert Siemer
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: Dec 6, 2000
Inventors
Metin Ersoy
Hubert Siemer
Assignee (at issue)
ZF Lemförder Metallwaren 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.