Granted Patent
Utility
US 4,393,451 · App. 06/235,386
Method and apparatus for measuring total liquid volume flow
Inventor:
Leland W. Barker
Patented Case
View Patent ↗
Granted: Jul 12, 1983
Filed: Feb 17, 1981
Inventor
Leland W. Barker
Assignee (at issue)
EASTMAN KODAK COMPANY
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.