Granted Patent
Utility
US 4,848,313 · App. 07/119,128
Compact forced air heater
Inventor:
Wally W. Velie
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Nov 10, 1987
Inventor
Wally W. Velie
Assignee (at issue)
Scheu Manufacturing 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.