Granted Patent
Utility
US 4,450,079 · App. 06/320,192
Cassette for providing a controlled flow of fluid
Inventor:
Andrew F. Farr
Patented Case
View Patent ↗
Granted: May 22, 1984
Filed: Nov 12, 1981
Inventor
Andrew F. Farr
Assignee (at issue)
Imed 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.