Granted Patent
Utility
US 6,591,607 · App. 09/857,928
Hydraulic manipulator
Inventor:
Klaus Baumgarten
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Jun 11, 2001
Inventor
Klaus Baumgarten
Assignee (at issue)
LFK-LENKFLUGKOERPERSYSTEME 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.