Granted Patent
Utility
US 4,269,062 · App. 06/083,464
Method for gauging fluid flow
Inventor:
Marion L. Smitley
Patented Case
View Patent ↗
Granted: May 26, 1981
Filed: Oct 10, 1979
Inventor
Marion L. Smitley
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.