Granted Patent
Utility
US 6,613,221 · App. 10/024,398
Sieve filter for fluid conduits, especially for hydraulic pressure lines in internal combustion engines
Inventors:
Eduard Golovatai-Schmidt, Frank Lauterbach, Rainer Ottersbach
Patented Case
View Patent ↗
Granted: Sep 2, 2003
Filed: Dec 18, 2001
Inventors
Eduard Golovatai-Schmidt
Frank Lauterbach
Rainer Ottersbach
Assignee (at issue)
Ina Schaeffler KG
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.