Granted Patent
Utility
US 4,156,704 · App. 05/864,699
Staged carburetor
Inventors:
Ralph E. Kalert, John C. Green
Patented Case
View Patent ↗
Granted: May 29, 1979
Filed: Dec 27, 1977
Inventors
Ralph E. Kalert
John C. Green
Assignee (at issue)
ACF Industries Incorporated
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.