Granted Patent
Utility
US 6,523,344 · App. 09/734,398
Hydraulic switching apparatus
Inventor:
Joerg Plassmeyer
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Dec 11, 2000
Inventor
Joerg Plassmeyer
Assignee (at issue)
Wilhelm Karmann 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.