Granted Patent
Utility
US 6,604,468 · App. 10/064,730
Device, system and method for on-line explosive deslagging
Inventors:
Francis Zilka, Timothy Zilka, Kurt Prouty, Donald Howard
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Aug 12, 2002
Inventors
Francis Zilka
Timothy Zilka
Kurt Prouty
Donald Howard
Assignee (at issue)
North American Industrial Services 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.