Granted Patent
Utility
US 4,971,730 · App. 07/393,894
Carburetor-air deflector bar
Inventor:
William H. Edmonston
Patented Case
View Patent ↗
Granted: Nov 20, 1990
Filed: Aug 15, 1989
Inventor
William H. Edmonston
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.