Granted Patent
Utility
US 4,989,521 · App. 07/505,590
Gravity fed pellet burner
Inventors:
Joseph P. Traeger, Mark A. Traeger, Randolph J. Traeger
Patented Case
View Patent ↗
Granted: Feb 5, 1991
Filed: Apr 6, 1990
Inventors
Joseph P. Traeger
Mark A. Traeger
Randolph J. Traeger
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.