Granted Patent
Utility
US 6,797,404 · App. 10/235,503
Anti-spatter coating for laser machining
Inventors:
Christoph Hamann, Michael J. Kelley
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Sep 6, 2002
Inventors
Christoph Hamann
Michael J. Kelley
Assignee (at issue)
Siemens VDO Automotive AG
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.