Granted Patent
Utility
US 6,668,818 · App. 09/934,983
Safety guard for patio heater
Inventor:
Martin C. Bossler
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: Aug 22, 2001
Inventor
Martin C. Bossler
Assignee (at issue)
CPD Associates 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.