Granted Patent
Utility
US 6,676,485 · App. 09/885,355
Wet injecting fine abrasives for water jet curved cutting of very brittle materials
Inventors:
David J. Quirke, Robert Cole
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Jun 20, 2001
Inventors
David J. Quirke
Robert Cole
Assignee (at issue)
LIGHTWAVE MICROSYSTEMS, INC.
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.