Granted Patent
Utility
US 5,603,312 · App. 08/289,927
Direct vent wood burning fireplace
Inventors:
Mark Champion, Frank H. Broome
Patented Case
View Patent ↗
Granted: Feb 18, 1997
Filed: Aug 12, 1994
Inventors
Mark Champion
Frank H. Broome
Assignee (at issue)
The Majestic Products Company
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.