Granted Patent
Utility
US 4,434,823 · App. 06/278,549
Liquid transfer device
Inventor:
Sydney Hudspith
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: Jun 29, 1981
Inventor
Sydney Hudspith
Assignee (at issue)
American Hospital Supply Corp.
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.