Granted Patent
Utility
US 4,419,880 · App. 06/134,994
Apparatus for calibrating fluid flow meters utilizing digital techniques
Inventor:
Peter J. Hanowich
Patented Case
View Patent ↗
Granted: Dec 13, 1983
Filed: Mar 28, 1980
Inventor
Peter J. Hanowich
Assignee (at issue)
Rockwell International 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.