Granted Patent
Utility
US 6,613,220 · App. 10/023,524
Sieve filter for fluid conduits, especially for hydraulic pressure lines in internal combustion engines
Inventor:
Eduard Golovatai-Schmidt
Patented Case
View Patent ↗
Granted: Sep 2, 2003
Filed: Dec 18, 2001
Inventor
Eduard Golovatai-Schmidt
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.