Granted Patent
Utility
US 4,221,747 · App. 05/928,292
Carburetor
Inventor:
William H. Edmonston
Patented Case
View Patent ↗
Granted: Sep 9, 1980
Filed: Jul 26, 1978
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.