Granted Patent
Utility
US 4,924,849 · App. 07/230,304
Portable heating appliance having fuel cartridge with on/off switch
Inventor:
Thaddeus Zaborowski
Patented Case
View Patent ↗
Granted: May 15, 1990
Filed: Aug 9, 1988
Inventor
Thaddeus Zaborowski
Assignee (at issue)
The Schawbel Corporation
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.