Granted Patent
Utility
US 5,452,069 · App. 08/137,854
Spark sampling microparticle generator and method
Inventors:
James T. Arnold, Andrew T. Zander, Elbert S. Lile, Charles Cooper
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Oct 15, 1993
Inventors
James T. Arnold
Andrew T. Zander
Elbert S. Lile
Charles Cooper
Assignee (at issue)
Varian, 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.