Granted Patent
Utility
US 4,861,270 · App. 07/238,453
Fire fighting trainer
Inventors:
James J. Ernst, Steven Williamson, George Rogers, Dominick J. Musto
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Aug 30, 1988
Inventors
James J. Ernst
Steven Williamson
George Rogers
Dominick J. Musto
Assignee (at issue)
Symtron Systems, 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.