Granted Patent
Utility
US 5,617,841 · App. 08/476,395
Grate with self ignitor for burning pellet fuel
Inventors:
Oliver J. Whitfield, John B. Tacke, Jr.
Patented Case
View Patent ↗
Granted: Apr 8, 1997
Filed: Jun 7, 1995
Inventors
Oliver J. Whitfield
John B. Tacke, Jr.
Assignee (at issue)
Pyro Industries, 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.