Granted Patent
Utility
US 6,726,549 · App. 10/142,270
Particle blast apparatus
Inventors:
Michael E. Rivir, Kevin R. Dressman
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: May 9, 2002
Inventors
Michael E. Rivir
Kevin R. Dressman
Assignee (at issue)
Cold Jet, LLC
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.