Granted Patent
Utility
US 6,217,686 · App. 09/340,747
Ultrasound welding apparatus
Inventors:
Andrew Kelley, III, Peter T. Lee
Patented Case
View Patent ↗
Granted: Apr 17, 2001
Filed: Jun 28, 1999
Inventors
Andrew Kelley, III
Peter T. Lee
Assignee (at issue)
Virtual Ink Corporation
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.