Granted Patent
Utility
US 5,280,495 · App. 07/835,666
Furnace refractory extraction system and method
Inventors:
George Havas, Jose A. Garcia
Patented Case
View Patent ↗
Granted: Jan 18, 1994
Filed: Feb 14, 1992
Inventors
George Havas
Jose A. Garcia
Assignee (at issue)
Ajax Magnethermic Corporation
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.