Granted Patent
Utility
US 5,003,489 · App. 07/395,517
Totalizer apparatus for flow rate measurement devices
Inventor:
John Wildberger
Patented Case
View Patent ↗
Granted: Mar 26, 1991
Filed: Aug 18, 1989
Inventor
John Wildberger
Assignee (at issue)
Federal Industries Industrial Group Inc.
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.