Granted Patent
Utility
US 6,652,689 · App. 10/103,250
Process and device for ultrasound treatment of a strip of material
Inventor:
Klaus Kubik
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Mar 21, 2002
Inventor
Klaus Kubik
Assignee (at issue)
Eduard Kusters Maschinefabrik GmbH & Co. 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.