Granted Patent
Utility
US 5,327,875 · App. 08/019,916
Vapor enhanced carburetion system
Inventor:
S. Franklin Hall
Patented Case
View Patent ↗
Granted: Jul 12, 1994
Filed: Feb 19, 1993
Inventor
S. Franklin Hall
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.