Granted Patent
Utility
US 6,145,451 · App. 09/308,193
Water-cooled firing grate
Inventors:
Emil Zurl, Jaroslav Aubrecht, Anton Esser
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: May 12, 1999
Inventors
Emil Zurl
Jaroslav Aubrecht
Anton Esser
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.