Granted Patent
Utility
US 5,769,034 · App. 08/786,096
Device, system and method for on-line explosive deslagging
Inventors:
Frank Zilka, Tim Zilka, Kurt Prouty, Don Howard
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Jan 17, 1997
Inventors
Frank Zilka
Tim Zilka
Kurt Prouty
Don Howard
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.