Granted Patent
Utility
US 4,318,214 · App. 06/093,047
Method and apparatus for manufacturing and forming engine induction passage venturi
Inventor:
Robert W. Dodson
Patented Case
View Patent ↗
Granted: Mar 9, 1982
Filed: Nov 13, 1979
Inventor
Robert W. Dodson
Assignee (at issue)
Colt Industries Operating Corporation
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.