Granted Patent
Utility
US 4,886,445 · App. 07/115,887
Gas burning artificial log assembly
Inventor:
Stephen F. Richardson
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Nov 2, 1987
Inventor
Stephen F. Richardson
Assignee (at issue)
Vermont Castings, 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.